From f592d3a9674ed60522ca0d0063a947aa00be86f9 Mon Sep 17 00:00:00 2001
From: Eisbehr <git@eisbehr.de>
Date: Wed, 2 May 2018 11:18:11 +0200
Subject: [PATCH] 1.7.8

- added config parameter 'ajaxCreateData' to ajax loader
- added 'PUT' request to ajax loader
- fixed jsDoc in main file on some functions
- closed all open single-line 'if' and 'for'
- switched whole project to single quote
- fixed strict check in script plugin
---
 README.md                          |    8 +-
 bower.json                         |    2 +-
 jquery.lazy.js                     |  170 +--
 jquery.lazy.min.js                 |    2 +-
 jquery.lazy.plugins.js             |  240 ++--
 jquery.lazy.plugins.min.js         |    4 +-
 package-lock.json                  | 2012 ++++++++++++++++++++++++++++
 package.json                       |    2 +-
 plugins/README.md                  |   21 +-
 plugins/jquery.lazy.ajax.js        |   47 +-
 plugins/jquery.lazy.ajax.min.js    |    4 +-
 plugins/jquery.lazy.av.js          |   47 +-
 plugins/jquery.lazy.av.min.js      |    2 +-
 plugins/jquery.lazy.iframe.js      |   28 +-
 plugins/jquery.lazy.iframe.min.js  |    2 +-
 plugins/jquery.lazy.noop.js        |    8 +-
 plugins/jquery.lazy.noop.min.js    |    2 +-
 plugins/jquery.lazy.picture.js     |   71 +-
 plugins/jquery.lazy.picture.min.js |    2 +-
 plugins/jquery.lazy.script.js      |   13 +-
 plugins/jquery.lazy.script.min.js  |    4 +-
 plugins/jquery.lazy.vimeo.js       |   13 +-
 plugins/jquery.lazy.vimeo.min.js   |    2 +-
 plugins/jquery.lazy.youtube.js     |   13 +-
 plugins/jquery.lazy.youtube.min.js |    2 +-
 25 files changed, 2402 insertions(+), 319 deletions(-)
 create mode 100644 package-lock.json

diff --git a/README.md b/README.md
index 3f3b82b..46c0ee2 100644
--- a/README.md
+++ b/README.md
@@ -65,12 +65,12 @@ Some examples below:
 Lazy and all plugins are available over [cdnjs](http://cdnjs.com) and [jsDelivr](http://jsdelivr.com) CDN and can directly included to every page.
 ```HTML
 <!-- jsDeliver -->
-<script type="text/javascript" src="//cdn.jsdelivr.net/gh/eisbehr-/jquery.lazy@1.7.7/jquery.lazy.min.js"></script>
-<script type="text/javascript" src="//cdn.jsdelivr.net/gh/eisbehr-/jquery.lazy@1.7.7/jquery.lazy.plugins.min.js"></script>
+<script type="text/javascript" src="//cdn.jsdelivr.net/gh/eisbehr-/jquery.lazy@1.7.8/jquery.lazy.min.js"></script>
+<script type="text/javascript" src="//cdn.jsdelivr.net/gh/eisbehr-/jquery.lazy@1.7.8/jquery.lazy.plugins.min.js"></script>
 
 <!-- cdnjs -->
-<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery.lazy/1.7.7/jquery.lazy.min.js"></script>
-<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery.lazy/1.7.7/jquery.lazy.plugins.min.js"></script>
+<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery.lazy/1.7.8/jquery.lazy.min.js"></script>
+<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery.lazy/1.7.8/jquery.lazy.plugins.min.js"></script>
 ```
 
 #### Self-Hosted
diff --git a/bower.json b/bower.json
index 5c59327..2175c6b 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
 {
   "name": "jquery-lazy",
   "description": "Lazy is a fast, feature-rich and lightweight delayed content loading plugin for jQuery and Zepto. It's designed to speed up page loading times and decrease traffic to your users by only loading the content in view. You can use Lazy in all vertical and horizontal scroll ways. It supports images in 'img' tags and backgrounds, supplied with css like 'background-image', by default. On those elements Lazy can set an default image or a placeholder while loading and supports retina displays as well. But Lazy is even able to load any other content you want by plugins and custom loaders.",
-  "version": "1.7.7",
+  "version": "1.7.8",
   "main": "jquery.lazy.min.js",
   "license": [
     "MIT",
diff --git a/jquery.lazy.js b/jquery.lazy.js
index fa26a87..3e0f16f 100644
--- a/jquery.lazy.js
+++ b/jquery.lazy.js
@@ -1,8 +1,8 @@
 /*!
- * jQuery & Zepto Lazy - v1.7.7
+ * jQuery & Zepto Lazy - v1.7.8
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -38,7 +38,7 @@
      * @access public
      * @type {function}
      * @param {object} settings
-     * @return void
+     * @return {LazyPlugin}
      */
     $.fn.Lazy = $.fn.lazy = function(settings) {
         return new LazyPlugin(this, settings);
@@ -49,19 +49,19 @@
      * @access public
      * @type {function}
      * @param {string|Array} names
-     * @param {string|Array} [elements]
+     * @param {string|Array|function} [elements]
      * @param {function} loader
      * @return void
      */
     $.Lazy = $.lazy = function(names, elements, loader) {
         // make second parameter optional
-        if( $.isFunction(elements) ) {
+        if ($.isFunction(elements)) {
             loader = elements;
             elements = [];
         }
 
         // exit here if parameter is not a callable function
-        if( !$.isFunction(loader) ) {
+        if (!$.isFunction(loader)) {
             return;
         }
 
@@ -73,14 +73,14 @@
             forced = config._f || (config._f = {});
 
         // add the loader plugin for every name
-        for( var i = 0, l = names.length; i < l; i++ ) {
-            if( config[names[i]] === undefined || $.isFunction(config[names[i]]) ) {
+        for (var i = 0, l = names.length; i < l; i++) {
+            if (config[names[i]] === undefined || $.isFunction(config[names[i]])) {
                 config[names[i]] = loader;
             }
         }
 
         // add forced elements loader
-        for( var c = 0, a = elements.length; c < a; c++ ) {
+        for (var c = 0, a = elements.length; c < a; c++) {
             forced[elements[c]] = names[0];
         }
     };
@@ -131,56 +131,56 @@
          * @access private
          * @type {string}
          */
-        _afterLoad = "afterLoad",
+        _afterLoad = 'afterLoad',
 
         /**
          * dictionary entry for better minimization
          * @access private
          * @type {string}
          */
-        _load = "load",
+        _load = 'load',
 
         /**
          * dictionary entry for better minimization
          * @access private
          * @type {string}
          */
-        _error = "error",
+        _error = 'error',
 
         /**
          * dictionary entry for better minimization
          * @access private
          * @type {string}
          */
-        _img = "img",
+        _img = 'img',
 
         /**
          * dictionary entry for better minimization
          * @access private
          * @type {string}
          */
-        _src = "src",
+        _src = 'src',
 
         /**
          * dictionary entry for better minimization
          * @access private
          * @type {string}
          */
-        _srcset = "srcset",
+        _srcset = 'srcset',
 
         /**
          * dictionary entry for better minimization
          * @access private
          * @type {string}
          */
-        _sizes = "sizes",
+        _sizes = 'sizes',
 
         /**
          * dictionary entry for better minimization
          * @access private
          * @type {string}
          */
-        _backgroundImage = "background-image";
+        _backgroundImage = 'background-image';
 
         /**
          * initialize plugin
@@ -197,18 +197,18 @@
             items = _prepareItems(items);
 
             // if delay time is set load all items at once after delay time
-            if( config.delay >= 0 ) {
+            if (config.delay >= 0) {
                 setTimeout(function() {
                     _lazyLoadItems(true);
                 }, config.delay);
             }
 
             // if no delay is set or combine usage is active bind events
-            if( config.delay < 0 || config.combined ) {
+            if (config.delay < 0 || config.combined) {
                 // create unique event function
                 events.e = _throttle(config.throttle, function(event) {
                     // reset detected window size on resize event
-                    if( event.type === "resize" ) {
+                    if (event.type === 'resize') {
                         _actualWidth = _actualHeight = -1;
                     }
 
@@ -232,7 +232,7 @@
 
                 // create function to force loading elements
                 events.f = function(forcedItems) {
-                    for( var i = 0; i < forcedItems.length; i++ ) {
+                    for (var i = 0; i < forcedItems.length; i++) {
                         // only handle item if available in current instance
                         // use a compare function, because Zepto can't handle object parameter for filter
                         // var item = items.filter(forcedItems[i]);
@@ -241,7 +241,7 @@
                             return this === forcedItems[i];
                         });
 
-                        if( item.length ) {
+                        if (item.length) {
                             _lazyLoadItems(false, item);   
                         }
                     }
@@ -252,7 +252,7 @@
 
                 // bind lazy load functions to scroll and resize event
                 // noinspection JSUnresolvedVariable
-                $(config.appendScroll).on("scroll." + namespace + " resize." + namespace, events.e);
+                $(config.appendScroll).on('scroll.' + namespace + ' resize.' + namespace, events.e);
             }
         }
 
@@ -281,30 +281,30 @@
             })
 
             // append plugin instance to all elements
-            .data("plugin_" + config.name, instance);
+            .data('plugin_' + config.name, instance);
 
-            for( var i = 0, l = items.length; i < l; i++ ) {
+            for (var i = 0, l = items.length; i < l; i++) {
                 var element = $(items[i]),
                     tag = _getElementTagName(items[i]),
                     elementImageBase = element.attr(config.imageBaseAttribute) || imageBase;
 
                 // generate and update source set if an image base is set
-                if( tag === _img && elementImageBase && element.attr(srcsetAttribute) ) {
+                if (tag === _img && elementImageBase && element.attr(srcsetAttribute)) {
                     element.attr(srcsetAttribute, _getCorrectedSrcSet(element.attr(srcsetAttribute), elementImageBase));
                 }
 
                 // add loader to forced element types
-                if( forcedTags[tag] !== undefined && !element.attr(loaderAttribute) ) {
+                if (forcedTags[tag] !== undefined && !element.attr(loaderAttribute)) {
                     element.attr(loaderAttribute, forcedTags[tag]);
                 }
 
                 // set default image on every element without source
-                if( tag === _img && defaultImage && !element.attr(_src) ) {
+                if (tag === _img && defaultImage && !element.attr(_src)) {
                     element.attr(_src, defaultImage);
                 }
 
                 // set placeholder on every element without background image
-                else if( tag !== _img && placeholder && (!element.css(_backgroundImage) || element.css(_backgroundImage) === "none") ) {
+                else if (tag !== _img && placeholder && (!element.css(_backgroundImage) || element.css(_backgroundImage) === 'none')) {
                     element.css(_backgroundImage, "url('" + placeholder + "')");
                 }
             }
@@ -321,9 +321,9 @@
          */
         function _lazyLoadItems(allItems, forced) {
             // skip if no items where left
-            if( !items.length ) {
+            if (!items.length) {
                 // destroy instance if option is enabled
-                if( config.autoDestroy ) {
+                if (config.autoDestroy) {
                     // noinspection JSUnresolvedFunction
                     instance.destroy();
                 }
@@ -333,14 +333,14 @@
 
             var elements = forced || items,
                 loadTriggered = false,
-                imageBase = config.imageBase || "",
+                imageBase = config.imageBase || '',
                 srcsetAttribute = config.srcsetAttribute,
                 handledName = config.handledName;
 
             // loop all available items
-            for( var i = 0; i < elements.length; i++ ) {
+            for (var i = 0; i < elements.length; i++) {
                 // item is at least in loadable area
-                if( allItems || forced || _isInLoadableArea(elements[i]) ) {
+                if (allItems || forced || _isInLoadableArea(elements[i])) {
                     var element = $(elements[i]),
                         tag = _getElementTagName(elements[i]),
                         attribute = element.attr(config.attribute),
@@ -348,9 +348,9 @@
                         customLoader = element.attr(config.loaderAttribute);
 
                         // is not already handled 
-                    if( !element.data(handledName) &&
+                    if (!element.data(handledName) &&
                         // and is visible or visibility doesn't matter
-                        (!config.visibleOnly || element.is(":visible")) && (
+                        (!config.visibleOnly || element.is(':visible')) && (
                         // and image source or source set attribute is available
                         (attribute || element.attr(srcsetAttribute)) && (
                             // and is image tag where attribute is not equal source or source set
@@ -359,7 +359,7 @@
                             (tag !== _img && elementImageBase + attribute !== element.css(_backgroundImage))
                         ) ||
                         // or custom loader is available
-                        customLoader ))
+                        customLoader))
                     {
                         // mark element always as handled as this point to prevent double handling
                         loadTriggered = true;
@@ -372,7 +372,7 @@
             }
 
             // when something was loaded remove them from remaining items
-            if( loadTriggered ) {
+            if (loadTriggered) {
                 items = $(items).filter(function() {
                     return !$(this).data(handledName);
                 });
@@ -394,7 +394,7 @@
 
             // extended error callback for correct 'onFinishedAll' handling
             var errorCallback = function() {
-                _triggerCallback("onError", element);
+                _triggerCallback('onError', element);
                 _reduceAwaiting();
 
                 // prevent further callback calls
@@ -402,7 +402,7 @@
             };
 
             // trigger function before loading image
-            _triggerCallback("beforeLoad", element);
+            _triggerCallback('beforeLoad', element);
 
             // fetch all double used data here for better code minimization
             var srcAttribute = config.attribute,
@@ -414,11 +414,11 @@
                 elementRetina = element.attr(retinaAttribute);
 
             // handle custom loader
-            if( customLoader ) {
+            if (customLoader) {
                 // on load callback
                 var loadCallback = function() {
                     // remove attribute from element
-                    if( removeAttribute ) {
+                    if (removeAttribute) {
                         element.removeAttr(config.loaderAttribute);
                     }
 
@@ -443,8 +443,8 @@
                 .one(_load, loadCallback);
 
                 // trigger custom loader and handle response
-                if( !_triggerCallback(customLoader, element, function(response) {
-                    if( response ) {
+                if (!_triggerCallback(customLoader, element, function(response) {
+                    if(response) {
                         element.off(_load);
                         loadCallback();
                     }
@@ -452,7 +452,9 @@
                         element.off(_error);
                         errorCallback();
                     }
-                })) element.trigger(_error);
+                })) {
+                    element.trigger(_error);
+                }
             }
 
             // handle images
@@ -470,7 +472,7 @@
 
                     // set image back to element
                     // do it as single 'attr' calls, to be sure 'src' is set after 'srcset'
-                    if( tag === _img ) {
+                    if (tag === _img) {
                         element.attr(_sizes, imageObj.attr(_sizes))
                                .attr(_srcset, imageObj.attr(_srcset))
                                .attr(_src, imageObj.attr(_src));
@@ -483,11 +485,11 @@
                     element[config.effect](config.effectTime);
 
                     // remove attribute from element
-                    if( removeAttribute ) {
-                        element.removeAttr(srcAttribute + " " + srcsetAttribute + " " + retinaAttribute + " " + config.imageBaseAttribute);
+                    if (removeAttribute) {
+                        element.removeAttr(srcAttribute + ' ' + srcsetAttribute + ' ' + retinaAttribute + ' ' + config.imageBaseAttribute);
 
                         // only remove 'sizes' attribute, if it was a custom one
-                        if( sizesAttribute !== _sizes ) {
+                        if (sizesAttribute !== _sizes) {
                             element.removeAttr(sizesAttribute);
                         }
                     }
@@ -507,7 +509,7 @@
 
                 // set sources
                 // do it as single 'attr' calls, to be sure 'src' is set after 'srcset'
-                var imageSrc = (_isRetinaDisplay && elementRetina ? elementRetina : element.attr(srcAttribute)) || "";
+                var imageSrc = (_isRetinaDisplay && elementRetina ? elementRetina : element.attr(srcAttribute)) || '';
                 imageObj.attr(_sizes, element.attr(sizesAttribute))
                         .attr(_srcset, element.attr(srcsetAttribute))
                         .attr(_src, imageSrc ? imageBase + imageSrc : null);
@@ -536,10 +538,10 @@
                                // check if element is even in loadable area from right
                                (-threshold < elementBound.right);
 
-            if( direction === "vertical" ) {
+            if (direction === 'vertical') {
                 return vertical;
             }
-            else if( direction === "horizontal" ) {
+            else if (direction === 'horizontal') {
                 return horizontal;
             }
 
@@ -582,13 +584,13 @@
          * @returns {string}
          */
         function _getCorrectedSrcSet(srcset, imageBase) {
-            if( imageBase ) {
+            if (imageBase) {
                 // trim, remove unnecessary spaces and split entries
-                var entries = srcset.split(",");
-                srcset = "";
+                var entries = srcset.split(',');
+                srcset = '';
 
-                for( var i = 0, l = entries.length; i < l; i++ ) {
-                    srcset += imageBase + entries[i].trim() + (i !== l - 1 ? "," : "");
+                for (var i = 0, l = entries.length; i < l; i++) {
+                    srcset += imageBase + entries[i].trim() + (i !== l - 1 ? ',' : '');
                 }
             }
 
@@ -617,7 +619,7 @@
 
                 timeout && clearTimeout(timeout); // jshint ignore : line
 
-                if( elapsed > delay || !config.enableThrottle || ignoreThrottle ) {
+                if (elapsed > delay || !config.enableThrottle || ignoreThrottle) {
                     run();
                 }
                 else {
@@ -635,8 +637,8 @@
             --_awaitingAfterLoad;
 
             // if no items were left trigger finished event
-            if( !items.length && !_awaitingAfterLoad ) {
-                _triggerCallback("onFinishedAll");
+            if (!items.length && !_awaitingAfterLoad) {
+                _triggerCallback('onFinishedAll');
             }
         }
 
@@ -649,7 +651,7 @@
          * @return {boolean}
          */
         function _triggerCallback(callback, element, args) {
-            if( (callback = config[callback]) ) {
+            if ((callback = config[callback])) {
                 // jQuery's internal '$(arguments).slice(1)' are causing problems at least on old iPads
                 // below is shorthand of 'Array.prototype.slice.call(arguments, 1)'
                 callback.apply(instance, [].slice.call(arguments, 1));
@@ -660,14 +662,14 @@
         }
 
         // if event driven or window is already loaded don't wait for page loading
-        if( config.bind === "event" || windowLoaded ) {
+        if (config.bind === 'event' || windowLoaded) {
             _initialize();
         }
 
         // otherwise load initial items and start lazy after page load
         else {
             // noinspection JSUnresolvedVariable
-            $(window).on(_load + "." + namespace, _initialize);
+            $(window).on(_load + '.' + namespace, _initialize);
         }  
     }
 
@@ -707,7 +709,7 @@
          * @access private
          * @type {string}
          */
-        _namespace = _config.name + "-" + (++lazyInstanceId);
+        _namespace = _config.name + '-' + (++lazyInstanceId);
 
         // noinspection JSUndefinedPropertyAssignment
         /**
@@ -720,7 +722,7 @@
          * @return {LazyPlugin|*}
          */
         _instance.config = function(entryName, value) {
-            if( value === undefined ) {
+            if (value === undefined) {
                 return _config[entryName];
             }
 
@@ -736,7 +738,7 @@
          * @return {LazyPlugin}
          */
         _instance.addItems = function(items) {
-            _events.a && _events.a($.type(items) === "string" ? $(items) : items); // jshint ignore : line
+            _events.a && _events.a($.type(items) === 'string' ? $(items) : items); // jshint ignore : line
             return _instance;
         };
 
@@ -772,7 +774,7 @@
          * @return {LazyPlugin}
          */
         _instance.force = function(items) {
-            _events.f && _events.f($.type(items) === "string" ? $(items) : items); // jshint ignore : line
+            _events.f && _events.f($.type(items) === 'string' ? $(items) : items); // jshint ignore : line
             return _instance;
         };
 
@@ -799,9 +801,9 @@
         _instance.destroy = function() {
             // unbind instance generated events
             // noinspection JSUnresolvedFunction, JSUnresolvedVariable
-            $(_config.appendScroll).off("." + _namespace, _events.e);
+            $(_config.appendScroll).off('.' + _namespace, _events.e);
             // noinspection JSUnresolvedVariable
-            $(window).off("." + _namespace);
+            $(window).off('.' + _namespace);
 
             // clear events
             _events = {};
@@ -818,37 +820,37 @@
     /**
      * settings and configuration data
      * @access public
-     * @type {object}
+     * @type {object|*}
      */
     LazyPlugin.prototype.config = {
         // general
-        name               : "lazy",
+        name               : 'lazy',
         chainable          : true,
         autoDestroy        : true,
-        bind               : "load",
+        bind               : 'load',
         threshold          : 500,
         visibleOnly        : false,
         appendScroll       : window,
-        scrollDirection    : "both",
+        scrollDirection    : 'both',
         imageBase          : null,
-        defaultImage       : "data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==",
+        defaultImage       : 'data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==',
         placeholder        : null,
         delay              : -1,
         combined           : false,
 
         // attributes
-        attribute          : "data-src",
-        srcsetAttribute    : "data-srcset",
-        sizesAttribute     : "data-sizes",
-        retinaAttribute    : "data-retina",
-        loaderAttribute    : "data-loader",
-        imageBaseAttribute : "data-imagebase",
+        attribute          : 'data-src',
+        srcsetAttribute    : 'data-srcset',
+        sizesAttribute     : 'data-sizes',
+        retinaAttribute    : 'data-retina',
+        loaderAttribute    : 'data-loader',
+        imageBaseAttribute : 'data-imagebase',
         removeAttribute    : true,
-        handledName        : "handled",
-        loadedName         : "loaded",
+        handledName        : 'handled',
+        loadedName         : 'loaded',
 
         // effect
-        effect             : "show",
+        effect             : 'show',
         effectTime         : 0,
 
         // throttle
@@ -864,7 +866,7 @@
 
     // register window load event globally to prevent not loading elements
     // since jQuery 3.X ready state is fully async and may be executed after 'load' 
-    $(window).on("load", function() {
+    $(window).on('load', function() {
         windowLoaded = true;
     });
 })(window);
\ No newline at end of file
diff --git a/jquery.lazy.min.js b/jquery.lazy.min.js
index f20a61f..8c40b15 100644
--- a/jquery.lazy.min.js
+++ b/jquery.lazy.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy v1.7.7 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
+/*! jQuery & Zepto Lazy v1.7.8 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
 !function(t,e){"use strict";function r(r,a,i,u,l){function f(){L=t.devicePixelRatio>1,i=c(i),a.delay>=0&&setTimeout(function(){s(!0)},a.delay),(a.delay<0||a.combined)&&(u.e=v(a.throttle,function(t){"resize"===t.type&&(w=B=-1),s(t.all)}),u.a=function(t){t=c(t),i.push.apply(i,t)},u.g=function(){return i=n(i).filter(function(){return!n(this).data(a.loadedName)})},u.f=function(t){for(var e=0;e<t.length;e++){var r=i.filter(function(){return this===t[e]});r.length&&s(!1,r)}},s(),n(a.appendScroll).on("scroll."+l+" resize."+l,u.e))}function c(t){var i=a.defaultImage,o=a.placeholder,u=a.imageBase,l=a.srcsetAttribute,f=a.loaderAttribute,c=a._f||{};t=n(t).filter(function(){var t=n(this),r=m(this);return!t.data(a.handledName)&&(t.attr(a.attribute)||t.attr(l)||t.attr(f)||c[r]!==e)}).data("plugin_"+a.name,r);for(var s=0,d=t.length;s<d;s++){var A=n(t[s]),g=m(t[s]),h=A.attr(a.imageBaseAttribute)||u;g===N&&h&&A.attr(l)&&A.attr(l,b(A.attr(l),h)),c[g]===e||A.attr(f)||A.attr(f,c[g]),g===N&&i&&!A.attr(E)?A.attr(E,i):g===N||!o||A.css(O)&&"none"!==A.css(O)||A.css(O,"url('"+o+"')")}return t}function s(t,e){if(!i.length)return void(a.autoDestroy&&r.destroy());for(var o=e||i,u=!1,l=a.imageBase||"",f=a.srcsetAttribute,c=a.handledName,s=0;s<o.length;s++)if(t||e||A(o[s])){var g=n(o[s]),h=m(o[s]),b=g.attr(a.attribute),v=g.attr(a.imageBaseAttribute)||l,p=g.attr(a.loaderAttribute);g.data(c)||a.visibleOnly&&!g.is(":visible")||!((b||g.attr(f))&&(h===N&&(v+b!==g.attr(E)||g.attr(f)!==g.attr(F))||h!==N&&v+b!==g.css(O))||p)||(u=!0,g.data(c,!0),d(g,h,v,p))}u&&(i=n(i).filter(function(){return!n(this).data(c)}))}function d(t,e,r,i){++z;var o=function(){y("onError",t),p(),o=n.noop};y("beforeLoad",t);var u=a.attribute,l=a.srcsetAttribute,f=a.sizesAttribute,c=a.retinaAttribute,s=a.removeAttribute,d=a.loadedName,A=t.attr(c);if(i){var g=function(){s&&t.removeAttr(a.loaderAttribute),t.data(d,!0),y(T,t),setTimeout(p,1),g=n.noop};t.off(I).one(I,o).one(D,g),y(i,t,function(e){e?(t.off(D),g()):(t.off(I),o())})||t.trigger(I)}else{var h=n(new Image);h.one(I,o).one(D,function(){t.hide(),e===N?t.attr(C,h.attr(C)).attr(F,h.attr(F)).attr(E,h.attr(E)):t.css(O,"url('"+h.attr(E)+"')"),t[a.effect](a.effectTime),s&&(t.removeAttr(u+" "+l+" "+c+" "+a.imageBaseAttribute),f!==C&&t.removeAttr(f)),t.data(d,!0),y(T,t),h.remove(),p()});var m=(L&&A?A:t.attr(u))||"";h.attr(C,t.attr(f)).attr(F,t.attr(l)).attr(E,m?r+m:null),h.complete&&h.trigger(D)}}function A(t){var e=t.getBoundingClientRect(),r=a.scrollDirection,n=a.threshold,i=h()+n>e.top&&-n<e.bottom,o=g()+n>e.left&&-n<e.right;return"vertical"===r?i:"horizontal"===r?o:i&&o}function g(){return w>=0?w:w=n(t).width()}function h(){return B>=0?B:B=n(t).height()}function m(t){return t.tagName.toLowerCase()}function b(t,e){if(e){var r=t.split(",");t="";for(var a=0,n=r.length;a<n;a++)t+=e+r[a].trim()+(a!==n-1?",":"")}return t}function v(t,e){var n,i=0;return function(o,u){function l(){i=+new Date,e.call(r,o)}var f=+new Date-i;n&&clearTimeout(n),f>t||!a.enableThrottle||u?l():n=setTimeout(l,t-f)}}function p(){--z,i.length||z||y("onFinishedAll")}function y(t,e,n){return!!(t=a[t])&&(t.apply(r,[].slice.call(arguments,1)),!0)}var z=0,w=-1,B=-1,L=!1,T="afterLoad",D="load",I="error",N="img",E="src",F="srcset",C="sizes",O="background-image";"event"===a.bind||o?f():n(t).on(D+"."+l,f)}function a(a,o){var u=this,l=n.extend({},u.config,o),f={},c=l.name+"-"+ ++i;return u.config=function(t,r){return r===e?l[t]:(l[t]=r,u)},u.addItems=function(t){return f.a&&f.a("string"===n.type(t)?n(t):t),u},u.getItems=function(){return f.g?f.g():{}},u.update=function(t){return f.e&&f.e({},!t),u},u.force=function(t){return f.f&&f.f("string"===n.type(t)?n(t):t),u},u.loadAll=function(){return f.e&&f.e({all:!0},!0),u},u.destroy=function(){return n(l.appendScroll).off("."+c,f.e),n(t).off("."+c),f={},e},r(u,l,a,f,c),l.chainable?a:u}var n=t.jQuery||t.Zepto,i=0,o=!1;n.fn.Lazy=n.fn.lazy=function(t){return new a(this,t)},n.Lazy=n.lazy=function(t,r,i){if(n.isFunction(r)&&(i=r,r=[]),n.isFunction(i)){t=n.isArray(t)?t:[t],r=n.isArray(r)?r:[r];for(var o=a.prototype.config,u=o._f||(o._f={}),l=0,f=t.length;l<f;l++)(o[t[l]]===e||n.isFunction(o[t[l]]))&&(o[t[l]]=i);for(var c=0,s=r.length;c<s;c++)u[r[c]]=t[0]}},a.prototype.config={name:"lazy",chainable:!0,autoDestroy:!0,bind:"load",threshold:500,visibleOnly:!1,appendScroll:t,scrollDirection:"both",imageBase:null,defaultImage:"data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==",placeholder:null,delay:-1,combined:!1,attribute:"data-src",srcsetAttribute:"data-srcset",sizesAttribute:"data-sizes",retinaAttribute:"data-retina",loaderAttribute:"data-loader",imageBaseAttribute:"data-imagebase",removeAttribute:!0,handledName:"handled",loadedName:"loaded",effect:"show",effectTime:0,enableThrottle:!0,throttle:250,beforeLoad:e,afterLoad:e,onError:e,onFinishedAll:e},n(t).on("load",function(){o=!0})}(window);
\ No newline at end of file
diff --git a/jquery.lazy.plugins.js b/jquery.lazy.plugins.js
index 9a43fe7..a27f0b6 100644
--- a/jquery.lazy.plugins.js
+++ b/jquery.lazy.plugins.js
@@ -1,8 +1,8 @@
 /*!
- * jQuery & Zepto Lazy - AJAX Plugin - v1.2
+ * jQuery & Zepto Lazy - AJAX Plugin - v1.3
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -10,21 +10,27 @@
  */
 ;(function($) {
     // load data by ajax request and pass them to elements inner html, like:
-    // <div data-loader="ajax" data-src"url.html" data-method="post" data-type="html"></div>
-    $.lazy("ajax", function(element, response) {
-        ajaxRequest(this, element, response, element.attr("data-method"));
+    // <div data-loader="ajax" data-src="url.html" data-method="post" data-type="html"></div>
+    $.lazy('ajax', function(element, response) {
+        ajaxRequest(this, element, response, element.attr('data-method'));
     });
 
     // load data by ajax get request and pass them to elements inner html, like:
-    // <div data-loader="get" data-src"url.html" data-type="html"></div>
-    $.lazy("get", function(element, response) {
-        ajaxRequest(this, element, response, "get");
+    // <div data-loader="get" data-src="url.html" data-type="html"></div>
+    $.lazy('get', function(element, response) {
+        ajaxRequest(this, element, response, 'GET');
     });
 
     // load data by ajax post request and pass them to elements inner html, like:
-    // <div data-loader="post" data-src"url.html" data-type="html"></div>
-    $.lazy("post", function(element, response) {
-        ajaxRequest(this, element, response, "post");
+    // <div data-loader="post" data-src="url.html" data-type="html"></div>
+    $.lazy('post', function(element, response) {
+        ajaxRequest(this, element, response, 'POST');
+    });
+
+    // load data by ajax put request and pass them to elements inner html, like:
+    // <div data-loader="put" data-src="url.html" data-type="html"></div>
+    $.lazy('put', function(element, response) {
+        ajaxRequest(this, element, response, 'PUT');
     });
 
     /**
@@ -35,10 +41,18 @@
      * @param {string} [method]
      */
     function ajaxRequest(instance, element, response, method) {
+        method = method.toUpperCase();
+
+        var data;
+        if ((method === 'POST' || method === 'PUT') && instance.config('ajaxCreateData')) {
+            data = instance.config('ajaxCreateData').apply(instance, [element]);
+        }
+
         $.ajax({
-            url: element.attr("data-src"),
-            type: method || "get",
-            dataType: element.attr("data-type") || "html",
+            url: element.attr('data-src'),
+            type: method === 'POST' || method === 'PUT' ? method : 'GET',
+            data: data,
+            dataType: element.attr('data-type') || 'html',
 
             /**
              * success callback
@@ -54,8 +68,9 @@
                 response(true);
 
                 // remove attributes
-                if( instance.config("removeAttribute") )
-                    element.removeAttr("data-src data-method data-type");
+                if (instance.config('removeAttribute')) {
+                    element.removeAttr('data-src data-method data-type');
+                }
             },
 
             /**
@@ -76,7 +91,7 @@
  * jQuery & Zepto Lazy - AV Plugin - v1.4
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -104,30 +119,32 @@
     //   <data-track kind="descriptions" src="descriptions.vtt" srclang="en"></data-track>
     //   <data-track kind="subtitles" src="subtitles.vtt" srclang="de"></data-track>
     // </video>
-    $.lazy(["av", "audio", "video"], ["audio", "video"], function(element, response) {
+    $.lazy(['av', 'audio', 'video'], ['audio', 'video'], function(element, response) {
         var elementTagName = element[0].tagName.toLowerCase();
 
-        if( elementTagName === "audio" || elementTagName === "video" ) {
-            var srcAttr = "data-src",
+        if (elementTagName === 'audio' || elementTagName === 'video') {
+            var srcAttr = 'data-src',
                 sources = element.find(srcAttr),
-                tracks = element.find("data-track"),
+                tracks = element.find('data-track'),
                 sourcesInError = 0,
 
             // create on error callback for sources
             onError = function() {
-                if( ++sourcesInError === sources.length )
+                if (++sourcesInError === sources.length) {
                     response(false);
+                }
             },
 
             // create callback to handle a source or track entry
             handleSource = function() {
                 var source = $(this),
                     type = source[0].tagName.toLowerCase(),
-                    attributes = source.prop("attributes"),
-                    target = $(type === srcAttr ? "<source>" : "<track>");
+                    attributes = source.prop('attributes'),
+                    target = $(type === srcAttr ? '<source>' : '<track>');
 
-                if( type === srcAttr )
-                    target.one("error", onError);
+                if (type === srcAttr) {
+                    target.one('error', onError);
+                }
 
                 $.each(attributes, function(index, attribute) {
                     target.attr(attribute.name, attribute.value);
@@ -137,36 +154,38 @@
             };
 
             // create event for successfull load
-            element.one("loadedmetadata", function() {
+            element.one('loadedmetadata', function() {
                 response(true);
             })
 
             // remove default callbacks to ignore loading poster image
-            .off("load error")
+            .off('load error')
 
             // load poster image
-            .attr("poster", element.attr("data-poster"));
+            .attr('poster', element.attr('data-poster'));
 
             // load by child tags
-            if( sources.length )
+            if (sources.length) {
                 sources.each(handleSource);
+            }
 
             // load by attribute
-            else if( element.attr(srcAttr) ) {
+            else if (element.attr(srcAttr)) {
                 // split for every entry by comma
-                $.each(element.attr(srcAttr).split(","), function(index, value) {
+                $.each(element.attr(srcAttr).split(','), function(index, value) {
                     // split again for file and file type
-                    var parts = value.split("|");
+                    var parts = value.split('|');
 
                     // create a source entry
-                    element.append($("<source>")
-                           .one("error", onError)
+                    element.append($('<source>')
+                           .one('error', onError)
                            .attr({src: parts[0].trim(), type: parts[1].trim()}));
                 });
 
                 // remove now obsolete attribute
-                if( this.config("removeAttribute") )
+                if (this.config('removeAttribute')) {
                     element.removeAttr(srcAttr);
+                }
             }
 
             else {
@@ -176,8 +195,9 @@
             }
 
             // load optional tracks
-            if( tracks.length )
+            if (tracks.length) {
                 tracks.each(handleSource);
+            }
         }
 
         else {
@@ -192,7 +212,7 @@
  * jQuery & Zepto Lazy - iFrame Plugin - v1.5
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -204,29 +224,30 @@
     //
     // enable content error check with:
     // <iframe data-src="iframe.html" data-error-detect="true"></iframe>
-    $.lazy(["frame", "iframe"], "iframe", function(element, response) {
+    $.lazy(['frame', 'iframe'], 'iframe', function(element, response) {
         var instance = this;
 
-        if( element[0].tagName.toLowerCase() === "iframe" ) {
-            var srcAttr = "data-src",
-                errorDetectAttr = "data-error-detect",
+        if (element[0].tagName.toLowerCase() === 'iframe') {
+            var srcAttr = 'data-src',
+                errorDetectAttr = 'data-error-detect',
                 errorDetect = element.attr(errorDetectAttr);
 
             // default way, just replace the 'src' attribute
-            if( errorDetect !== "true" && errorDetect !== "1" ) {
+            if (errorDetect !== 'true' && errorDetect !== '1') {
                 // set iframe source
-                element.attr("src", element.attr(srcAttr));
+                element.attr('src', element.attr(srcAttr));
 
                 // remove attributes
-                if( instance.config("removeAttribute") )
-                    element.removeAttr(srcAttr + " " + errorDetectAttr);
+                if (instance.config('removeAttribute')) {
+                    element.removeAttr(srcAttr + ' ' + errorDetectAttr);
+                }
             }
 
             // extended way, even check if the document is available
             else {
                 $.ajax({
                     url: element.attr(srcAttr),
-                    dataType: "html",
+                    dataType: 'html',
                     crossDomain: true,
                     xhrFields: {withCredentials: true},
 
@@ -241,11 +262,12 @@
                         element.html(content)
 
                         // change iframe src
-                        .attr("src", element.attr(srcAttr));
+                        .attr('src', element.attr(srcAttr));
 
                         // remove attributes
-                        if( instance.config("removeAttribute") )
-                            element.removeAttr(srcAttr + " " + errorDetectAttr);
+                        if (instance.config('removeAttribute')) {
+                            element.removeAttr(srcAttr + ' ' + errorDetectAttr);
+                        }
                     },
 
                     /**
@@ -274,7 +296,7 @@
  * jQuery & Zepto Lazy - NOOP Plugin - v1.2
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -286,16 +308,16 @@
     // <div data-loader="noop"></div>
 
     // does not do anything, just a 'no-operation' helper ;)
-    $.lazy("noop", function() {});
+    $.lazy('noop', function() {});
 
     // does nothing, but response a successfull loading
-    $.lazy("noop-success", function(element, response) {
+    $.lazy('noop-success', function(element, response) {
         // use response function for Zepto
         response(true);
     });
 
     // does nothing, but response a failed loading
-    $.lazy("noop-error", function(element, response) {
+    $.lazy('noop-error', function(element, response) {
         // use response function for Zepto
         response(false);
     });
@@ -305,18 +327,18 @@
  * jQuery & Zepto Lazy - Picture Plugin - v1.3
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
  * http://www.gnu.org/licenses/gpl-2.0.html
  */
 ;(function($) {
-    var srcAttr = "data-src",
-        srcsetAttr = "data-srcset",
-        mediaAttr = "data-media",
-        sizesAttr = "data-sizes",
-        typeAttr = "data-type";
+    var srcAttr = 'data-src',
+        srcsetAttr = 'data-srcset',
+        mediaAttr = 'data-media',
+        sizesAttr = 'data-sizes',
+        typeAttr = 'data-type';
 
     // loads picture elements like:
     // <picture>
@@ -333,45 +355,46 @@
     //
     // or just with attributes in one line:
     // <picture data-src="default.jpg" data-srcset="1x.jpg 1x, 2x.jpg 2x, 3x.jpg 3x" data-media="(min-width: 600px)" data-sizes="" data-type="image/jpeg" />
-    $.lazy(["pic", "picture"], ["picture"], function(element, response) {
+    $.lazy(['pic', 'picture'], ['picture'], function(element, response) {
         var elementTagName = element[0].tagName.toLowerCase();
 
-        if( elementTagName === "picture" ) {
+        if (elementTagName === 'picture') {
             var sources = element.find(srcAttr),
-                image = element.find("data-img"),
-                imageBase = this.config("imageBase") || "";
+                image = element.find('data-img'),
+                imageBase = this.config('imageBase') || '';
 
             // handle as child elements
-            if( sources.length ) {
+            if (sources.length) {
                 sources.each(function() {
-                    renameElementTag($(this), "source", imageBase);
+                    renameElementTag($(this), 'source', imageBase);
                 });
 
                 // create img tag from child
-                if( image.length === 1 ) {
-                    image = renameElementTag(image, "img", imageBase);
+                if (image.length === 1) {
+                    image = renameElementTag(image, 'img', imageBase);
 
                     // bind event callbacks to new image tag
-                    image.on("load", function() {
+                    image.on('load', function() {
                         response(true);
-                    }).on("error", function() {
+                    }).on('error', function() {
                         response(false);
                     });
 
-                    image.attr("src", image.attr(srcAttr));
+                    image.attr('src', image.attr(srcAttr));
 
-                    if( this.config("removeAttribute") ) {
+                    if (this.config('removeAttribute')) {
                         image.removeAttr(srcAttr);
                     }
                 }
 
                 // create img tag from attribute
-                else if( element.attr(srcAttr) ) {
+                else if (element.attr(srcAttr)) {
                     // create image tag
                     createImageObject(element, imageBase + element.attr(srcAttr), response);
 
-                    if( this.config("removeAttribute") )
+                    if (this.config('removeAttribute')) {
                         element.removeAttr(srcAttr);
+                    }
                 }
 
                 // pass error state
@@ -384,7 +407,7 @@
             // handle as attributes
             else if( element.attr(srcsetAttr) ) {
                 // create source elements before img tag
-                $("<source>").attr({
+                $('<source>').attr({
                     media: element.attr(mediaAttr),
                     sizes: element.attr(sizesAttr),
                     type: element.attr(typeAttr),
@@ -396,8 +419,8 @@
                 createImageObject(element, imageBase + element.attr(srcAttr), response);
 
                 // remove attributes from parent picture element
-                if( this.config("removeAttribute") ) {
-                    element.removeAttr(srcAttr + " " + srcsetAttr + " " + mediaAttr + " " + sizesAttr + " " + typeAttr);
+                if (this.config('removeAttribute')) {
+                    element.removeAttr(srcAttr + ' ' + srcsetAttr + ' ' + mediaAttr + ' ' + sizesAttr + ' ' + typeAttr);
                 }
             }
 
@@ -423,12 +446,12 @@
      * @return {jQuery|object}
      */
     function renameElementTag(element, toType, imageBase) {
-        var attributes = element.prop("attributes"),
-            target = $("<" + toType + ">");
+        var attributes = element.prop('attributes'),
+            target = $('<' + toType + '>');
 
         $.each(attributes, function(index, attribute) {
             // build srcset with image base
-            if( attribute.name === "srcset" || attribute.name === srcAttr ) {
+            if (attribute.name === 'srcset' || attribute.name === srcAttr) {
                 attribute.value = getCorrectedSrcSet(attribute.value, imageBase);
             }
 
@@ -448,13 +471,13 @@
      */
     function createImageObject(parent, src, response) {
         // create image tag
-        var imageObj = $("<img>")
+        var imageObj = $('<img>')
 
         // create image tag an bind callbacks for correct response
-        .one("load", function() {
+        .one('load', function() {
             response(true);
         })
-        .one("error", function() {
+        .one('error', function() {
             response(false);
         })
 
@@ -462,7 +485,7 @@
         .appendTo(parent)
 
         // set src attribute at last to prevent early kick-in
-        .attr("src", src);
+        .attr('src', src);
 
         // call after load even on cached image
         imageObj.complete && imageObj.load(); // jshint ignore : line
@@ -475,13 +498,13 @@
      * @returns {string}
      */
     function getCorrectedSrcSet(srcset, imageBase) {
-        if( imageBase ) {
+        if (imageBase) {
             // trim, remove unnecessary spaces and split entries
-            var entries = srcset.split(",");
-            srcset = "";
+            var entries = srcset.split(',');
+            srcset = '';
 
-            for( var i = 0, l = entries.length; i < l; i++ ) {
-                srcset += imageBase + entries[i].trim() + (i !== l - 1 ? "," : "");
+            for (var i = 0, l = entries.length; i < l; i++) {
+                srcset += imageBase + entries[i].trim() + (i !== l - 1 ? ',' : '');
             }
         }
 
@@ -493,7 +516,7 @@
  * jQuery & Zepto Lazy - Script Plugin - v1.2
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -502,13 +525,14 @@
 ;(function($) {
     // loads javascript files for script tags, like:
     // <script data-src="file.js" type="text/javascript"></script>
-    $.lazy(["js", "javascript", "script"], "script", function(element, response) {
-        if( element[0].tagName.toLowerCase() == "script" ) {
-            element.attr("src", element.attr("data-src"));
+    $.lazy(['js', 'javascript', 'script'], 'script', function(element, response) {
+        if (element[0].tagName.toLowerCase() === 'script') {
+            element.attr('src', element.attr('data-src'));
 
             // remove attribute
-            if( this.config("removeAttribute") )
-                element.removeAttr("data-src");
+            if (this.config('removeAttribute')) {
+                element.removeAttr('data-src');
+            }
         }
         else {
             // use response function for Zepto
@@ -521,7 +545,7 @@
  * jQuery & Zepto Lazy - Vimeo Plugin - v1.1
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -530,14 +554,15 @@
 ;(function($) {
     // load vimeo video iframe, like:
     // <iframe data-loader="vimeo" data-src="176894130" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    $.lazy("vimeo", function(element, response) {
-        if( element[0].tagName.toLowerCase() === "iframe" ) {
+    $.lazy('vimeo', function(element, response) {
+        if (element[0].tagName.toLowerCase() === 'iframe') {
             // pass source to iframe
-            element.attr("src", "https://player.vimeo.com/video/" + element.attr("data-src"));
+            element.attr('src', 'https://player.vimeo.com/video/' + element.attr('data-src'));
 
             // remove attribute
-            if( this.config("removeAttribute") )
-                element.removeAttr("data-src");
+            if (this.config('removeAttribute')) {
+                element.removeAttr('data-src');
+            }
         }
 
         else {
@@ -552,7 +577,7 @@
  * jQuery & Zepto Lazy - YouTube Plugin - v1.4
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -561,14 +586,15 @@
 ;(function($) {
     // load youtube video iframe, like:
     // <iframe data-loader="yt" data-src="1AYGnw6MwFM" width="560" height="315" frameborder="0" allowfullscreen></iframe>
-    $.lazy(["yt", "youtube"], function(element, response) {
-        if( element[0].tagName.toLowerCase() === "iframe" ) {
+    $.lazy(['yt', 'youtube'], function(element, response) {
+        if (element[0].tagName.toLowerCase() === 'iframe') {
             // pass source to iframe
-            element.attr("src", "https://www.youtube.com/embed/" + element.attr("data-src") + "?rel=0&amp;showinfo=0");
+            element.attr('src', 'https://www.youtube.com/embed/' + element.attr('data-src') + '?rel=0&amp;showinfo=0');
 
             // remove attribute
-            if( this.config("removeAttribute") )
-                element.removeAttr("data-src");
+            if (this.config('removeAttribute')) {
+                element.removeAttr('data-src');
+            }
         }
 
         else {
diff --git a/jquery.lazy.plugins.min.js b/jquery.lazy.plugins.min.js
index 3767df7..7ef41a5 100644
--- a/jquery.lazy.plugins.min.js
+++ b/jquery.lazy.plugins.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - All Plugins v1.7.7 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
-!function(t){function a(a,e,r,o){t.ajax({url:e.attr("data-src"),type:o||"get",dataType:e.attr("data-type")||"html",success:function(t){e.html(t),r(!0),a.config("removeAttribute")&&e.removeAttr("data-src data-method data-type")},error:function(){r(!1)}})}t.lazy("ajax",function(t,e){a(this,t,e,t.attr("data-method"))}),t.lazy("get",function(t,e){a(this,t,e,"get")}),t.lazy("post",function(t,e){a(this,t,e,"post")})}(window.jQuery||window.Zepto),function(t){t.lazy(["av","audio","video"],["audio","video"],function(a,e){var r=a[0].tagName.toLowerCase();if("audio"===r||"video"===r){var o=a.find("data-src"),i=a.find("data-track"),n=0,c=function(){++n===o.length&&e(!1)},s=function(){var a=t(this),e=a[0].tagName.toLowerCase(),r=a.prop("attributes"),o=t("data-src"===e?"<source>":"<track>");"data-src"===e&&o.one("error",c),t.each(r,function(t,a){o.attr(a.name,a.value)}),a.replaceWith(o)};a.one("loadedmetadata",function(){e(!0)}).off("load error").attr("poster",a.attr("data-poster")),o.length?o.each(s):a.attr("data-src")?(t.each(a.attr("data-src").split(","),function(e,r){var o=r.split("|");a.append(t("<source>").one("error",c).attr({src:o[0].trim(),type:o[1].trim()}))}),this.config("removeAttribute")&&a.removeAttr("data-src")):e(!1),i.length&&i.each(s)}else e(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy(["frame","iframe"],"iframe",function(a,e){var r=this;if("iframe"===a[0].tagName.toLowerCase()){var o=a.attr("data-error-detect");"true"!==o&&"1"!==o?(a.attr("src",a.attr("data-src")),r.config("removeAttribute")&&a.removeAttr("data-src data-error-detect")):t.ajax({url:a.attr("data-src"),dataType:"html",crossDomain:!0,xhrFields:{withCredentials:!0},success:function(t){a.html(t).attr("src",a.attr("data-src")),r.config("removeAttribute")&&a.removeAttr("data-src data-error-detect")},error:function(){e(!1)}})}else e(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy("noop",function(){}),t.lazy("noop-success",function(t,a){a(!0)}),t.lazy("noop-error",function(t,a){a(!1)})}(window.jQuery||window.Zepto),function(t){function a(a,e,i){var n=a.prop("attributes"),c=t("<"+e+">");return t.each(n,function(t,a){"srcset"!==a.name&&a.name!==o||(a.value=r(a.value,i)),c.attr(a.name,a.value)}),a.replaceWith(c),c}function e(a,e,r){var o=t("<img>").one("load",function(){r(!0)}).one("error",function(){r(!1)}).appendTo(a).attr("src",e);o.complete&&o.load()}function r(t,a){if(a){var e=t.split(",");t="";for(var r=0,o=e.length;r<o;r++)t+=a+e[r].trim()+(r!==o-1?",":"")}return t}var o="data-src";t.lazy(["pic","picture"],["picture"],function(i,n){if("picture"===i[0].tagName.toLowerCase()){var c=i.find(o),s=i.find("data-img"),d=this.config("imageBase")||"";c.length?(c.each(function(){a(t(this),"source",d)}),1===s.length?(s=a(s,"img",d),s.on("load",function(){n(!0)}).on("error",function(){n(!1)}),s.attr("src",s.attr(o)),this.config("removeAttribute")&&s.removeAttr(o)):i.attr(o)?(e(i,d+i.attr(o),n),this.config("removeAttribute")&&i.removeAttr(o)):n(!1)):i.attr("data-srcset")?(t("<source>").attr({media:i.attr("data-media"),sizes:i.attr("data-sizes"),type:i.attr("data-type"),srcset:r(i.attr("data-srcset"),d)}).appendTo(i),e(i,d+i.attr(o),n),this.config("removeAttribute")&&i.removeAttr(o+" data-srcset data-media data-sizes data-type")):n(!1)}else n(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy(["js","javascript","script"],"script",function(t,a){"script"==t[0].tagName.toLowerCase()?(t.attr("src",t.attr("data-src")),this.config("removeAttribute")&&t.removeAttr("data-src")):a(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy("vimeo",function(t,a){"iframe"===t[0].tagName.toLowerCase()?(t.attr("src","https://player.vimeo.com/video/"+t.attr("data-src")),this.config("removeAttribute")&&t.removeAttr("data-src")):a(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy(["yt","youtube"],function(t,a){"iframe"===t[0].tagName.toLowerCase()?(t.attr("src","https://www.youtube.com/embed/"+t.attr("data-src")+"?rel=0&amp;showinfo=0"),this.config("removeAttribute")&&t.removeAttr("data-src")):a(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
+/*! jQuery & Zepto Lazy - All Plugins v1.7.8 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
+!function(t){function a(a,e,r,o){o=o.toUpperCase();var i;"POST"!==o&&"PUT"!==o||!a.config("ajaxCreateData")||(i=a.config("ajaxCreateData").apply(a,[e])),t.ajax({url:e.attr("data-src"),type:"POST"===o||"PUT"===o?o:"GET",data:i,dataType:e.attr("data-type")||"html",success:function(t){e.html(t),r(!0),a.config("removeAttribute")&&e.removeAttr("data-src data-method data-type")},error:function(){r(!1)}})}t.lazy("ajax",function(t,e){a(this,t,e,t.attr("data-method"))}),t.lazy("get",function(t,e){a(this,t,e,"GET")}),t.lazy("post",function(t,e){a(this,t,e,"POST")}),t.lazy("put",function(t,e){a(this,t,e,"PUT")})}(window.jQuery||window.Zepto),function(t){t.lazy(["av","audio","video"],["audio","video"],function(a,e){var r=a[0].tagName.toLowerCase();if("audio"===r||"video"===r){var o=a.find("data-src"),i=a.find("data-track"),n=0,c=function(){++n===o.length&&e(!1)},s=function(){var a=t(this),e=a[0].tagName.toLowerCase(),r=a.prop("attributes"),o=t("data-src"===e?"<source>":"<track>");"data-src"===e&&o.one("error",c),t.each(r,function(t,a){o.attr(a.name,a.value)}),a.replaceWith(o)};a.one("loadedmetadata",function(){e(!0)}).off("load error").attr("poster",a.attr("data-poster")),o.length?o.each(s):a.attr("data-src")?(t.each(a.attr("data-src").split(","),function(e,r){var o=r.split("|");a.append(t("<source>").one("error",c).attr({src:o[0].trim(),type:o[1].trim()}))}),this.config("removeAttribute")&&a.removeAttr("data-src")):e(!1),i.length&&i.each(s)}else e(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy(["frame","iframe"],"iframe",function(a,e){var r=this;if("iframe"===a[0].tagName.toLowerCase()){var o=a.attr("data-error-detect");"true"!==o&&"1"!==o?(a.attr("src",a.attr("data-src")),r.config("removeAttribute")&&a.removeAttr("data-src data-error-detect")):t.ajax({url:a.attr("data-src"),dataType:"html",crossDomain:!0,xhrFields:{withCredentials:!0},success:function(t){a.html(t).attr("src",a.attr("data-src")),r.config("removeAttribute")&&a.removeAttr("data-src data-error-detect")},error:function(){e(!1)}})}else e(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy("noop",function(){}),t.lazy("noop-success",function(t,a){a(!0)}),t.lazy("noop-error",function(t,a){a(!1)})}(window.jQuery||window.Zepto),function(t){function a(a,e,i){var n=a.prop("attributes"),c=t("<"+e+">");return t.each(n,function(t,a){"srcset"!==a.name&&a.name!==o||(a.value=r(a.value,i)),c.attr(a.name,a.value)}),a.replaceWith(c),c}function e(a,e,r){var o=t("<img>").one("load",function(){r(!0)}).one("error",function(){r(!1)}).appendTo(a).attr("src",e);o.complete&&o.load()}function r(t,a){if(a){var e=t.split(",");t="";for(var r=0,o=e.length;r<o;r++)t+=a+e[r].trim()+(r!==o-1?",":"")}return t}var o="data-src";t.lazy(["pic","picture"],["picture"],function(i,n){if("picture"===i[0].tagName.toLowerCase()){var c=i.find(o),s=i.find("data-img"),d=this.config("imageBase")||"";c.length?(c.each(function(){a(t(this),"source",d)}),1===s.length?(s=a(s,"img",d),s.on("load",function(){n(!0)}).on("error",function(){n(!1)}),s.attr("src",s.attr(o)),this.config("removeAttribute")&&s.removeAttr(o)):i.attr(o)?(e(i,d+i.attr(o),n),this.config("removeAttribute")&&i.removeAttr(o)):n(!1)):i.attr("data-srcset")?(t("<source>").attr({media:i.attr("data-media"),sizes:i.attr("data-sizes"),type:i.attr("data-type"),srcset:r(i.attr("data-srcset"),d)}).appendTo(i),e(i,d+i.attr(o),n),this.config("removeAttribute")&&i.removeAttr(o+" data-srcset data-media data-sizes data-type")):n(!1)}else n(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy(["js","javascript","script"],"script",function(t,a){"script"===t[0].tagName.toLowerCase()?(t.attr("src",t.attr("data-src")),this.config("removeAttribute")&&t.removeAttr("data-src")):a(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy("vimeo",function(t,a){"iframe"===t[0].tagName.toLowerCase()?(t.attr("src","https://player.vimeo.com/video/"+t.attr("data-src")),this.config("removeAttribute")&&t.removeAttr("data-src")):a(!1)})}(window.jQuery||window.Zepto),function(t){t.lazy(["yt","youtube"],function(t,a){"iframe"===t[0].tagName.toLowerCase()?(t.attr("src","https://www.youtube.com/embed/"+t.attr("data-src")+"?rel=0&amp;showinfo=0"),this.config("removeAttribute")&&t.removeAttr("data-src")):a(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..3215dde
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,2012 @@
+{
+  "name": "jquery-lazy",
+  "version": "1.7.6",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "align-text": {
+      "version": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
+      "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
+      "dev": true,
+      "requires": {
+        "kind-of": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.0.tgz",
+        "longest": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
+        "repeat-string": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz"
+      }
+    },
+    "ansi-regex": {
+      "version": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true
+    },
+    "ansi-styles": {
+      "version": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+      "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
+      "dev": true
+    },
+    "archy": {
+      "version": "https://registry.npmjs.org/archy/-/archy-1.0.0.tgz",
+      "integrity": "sha1-+cjBN1fMHde8N5rHeyxipcKGjEA=",
+      "dev": true
+    },
+    "arr-diff": {
+      "version": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
+      "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
+      "dev": true,
+      "requires": {
+        "arr-flatten": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.0.3.tgz"
+      }
+    },
+    "arr-flatten": {
+      "version": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.0.3.tgz",
+      "integrity": "sha1-onTthawIhJtr14R8RYB0XcUa37E=",
+      "dev": true
+    },
+    "array-differ": {
+      "version": "https://registry.npmjs.org/array-differ/-/array-differ-1.0.0.tgz",
+      "integrity": "sha1-7/UuN1gknTO+QCuLuOVkuytdQDE=",
+      "dev": true
+    },
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+      "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=",
+      "dev": true
+    },
+    "array-unique": {
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+      "integrity": "sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=",
+      "dev": true
+    },
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+      "integrity": "sha1-Pv/DxQ4ABTH7cg6v+A8K6O8jz1k=",
+      "dev": true,
+      "requires": {
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+        "concat-map": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz"
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+    "braces": {
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+      "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
+      "dev": true,
+      "requires": {
+        "expand-range": "https://registry.npmjs.org/expand-range/-/expand-range-1.8.2.tgz",
+        "preserve": "https://registry.npmjs.org/preserve/-/preserve-0.2.0.tgz",
+        "repeat-element": "https://registry.npmjs.org/repeat-element/-/repeat-element-1.1.2.tgz"
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+    "buffer-shims": {
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+      "integrity": "sha1-mXjOMXOIxkmth5MCjDR37wRKi1E=",
+      "dev": true
+    },
+    "camelcase": {
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+      "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=",
+      "dev": true
+    },
+    "center-align": {
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+      "integrity": "sha1-qg0yYptu6XIgBBHL1EYckHvCt60=",
+      "dev": true,
+      "requires": {
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+        "lazy-cache": "https://registry.npmjs.org/lazy-cache/-/lazy-cache-1.0.4.tgz"
+      }
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+    "chalk": {
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+      "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+        "escape-string-regexp": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+        "has-ansi": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
+        "strip-ansi": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+        "supports-color": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz"
+      }
+    },
+    "cli": {
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+      "dev": true,
+      "requires": {
+        "exit": "0.1.2",
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+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
+          "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "1.0.0",
+            "inflight": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
+            "inherits": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+            "minimatch": "3.0.4",
+            "once": "https://registry.npmjs.org/once/-/once-1.3.3.tgz",
+            "path-is-absolute": "1.0.1"
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+        "minimatch": {
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+          "dev": true,
+          "requires": {
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+          }
+        }
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+      "integrity": "sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=",
+      "dev": true,
+      "requires": {
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+        "right-align": "https://registry.npmjs.org/right-align/-/right-align-0.1.3.tgz",
+        "wordwrap": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz"
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+    "clone": {
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+    "uglify-save-license": {
+      "version": "https://registry.npmjs.org/uglify-save-license/-/uglify-save-license-0.4.1.tgz",
+      "integrity": "sha1-lXJsF8xv0XHDYX479NjYKqjEzOE=",
+      "dev": true
+    },
+    "uglify-to-browserify": {
+      "version": "https://registry.npmjs.org/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz",
+      "integrity": "sha1-bgkk1r2mta/jSeOabWMoUKD4grc=",
+      "dev": true,
+      "optional": true
+    },
+    "unc-path-regex": {
+      "version": "https://registry.npmjs.org/unc-path-regex/-/unc-path-regex-0.1.2.tgz",
+      "integrity": "sha1-5z3T17DXxe2G+6xrCufYxqadUPo=",
+      "dev": true
+    },
+    "unique-stream": {
+      "version": "https://registry.npmjs.org/unique-stream/-/unique-stream-1.0.0.tgz",
+      "integrity": "sha1-1ZpKdUJ0R9mqbJHnAmP40mpLEEs=",
+      "dev": true
+    },
+    "user-home": {
+      "version": "https://registry.npmjs.org/user-home/-/user-home-1.1.1.tgz",
+      "integrity": "sha1-K1viOjK2Onyd640PKNSFcko98ZA=",
+      "dev": true
+    },
+    "util-deprecate": {
+      "version": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+      "dev": true
+    },
+    "util-extend": {
+      "version": "https://registry.npmjs.org/util-extend/-/util-extend-1.0.3.tgz",
+      "integrity": "sha1-p8IW0mdUUWljeztu3GypEZ4v+T8=",
+      "dev": true
+    },
+    "v8flags": {
+      "version": "https://registry.npmjs.org/v8flags/-/v8flags-2.1.1.tgz",
+      "integrity": "sha1-qrGh+jDUX4jdMhFIh1rALAtV5bQ=",
+      "dev": true,
+      "requires": {
+        "user-home": "https://registry.npmjs.org/user-home/-/user-home-1.1.1.tgz"
+      }
+    },
+    "vinyl": {
+      "version": "https://registry.npmjs.org/vinyl/-/vinyl-0.5.3.tgz",
+      "integrity": "sha1-sEVbOPxeDPMNQyUTLkYZcMIJHN4=",
+      "dev": true,
+      "requires": {
+        "clone": "https://registry.npmjs.org/clone/-/clone-1.0.2.tgz",
+        "clone-stats": "https://registry.npmjs.org/clone-stats/-/clone-stats-0.0.1.tgz",
+        "replace-ext": "https://registry.npmjs.org/replace-ext/-/replace-ext-0.0.1.tgz"
+      }
+    },
+    "vinyl-fs": {
+      "version": "https://registry.npmjs.org/vinyl-fs/-/vinyl-fs-0.3.14.tgz",
+      "integrity": "sha1-mmhRzhysHBzqX+hsCTHWIMLPqeY=",
+      "dev": true,
+      "requires": {
+        "defaults": "https://registry.npmjs.org/defaults/-/defaults-1.0.3.tgz",
+        "glob-stream": "https://registry.npmjs.org/glob-stream/-/glob-stream-3.1.18.tgz",
+        "glob-watcher": "https://registry.npmjs.org/glob-watcher/-/glob-watcher-0.0.6.tgz",
+        "graceful-fs": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-3.0.11.tgz",
+        "mkdirp": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+        "strip-bom": "https://registry.npmjs.org/strip-bom/-/strip-bom-1.0.0.tgz",
+        "through2": "https://registry.npmjs.org/through2/-/through2-0.6.5.tgz",
+        "vinyl": "https://registry.npmjs.org/vinyl/-/vinyl-0.4.6.tgz"
+      },
+      "dependencies": {
+        "clone": {
+          "version": "https://registry.npmjs.org/clone/-/clone-0.2.0.tgz",
+          "integrity": "sha1-xhJqkK1Pctv1rNskPMN3JP6T/B8=",
+          "dev": true
+        },
+        "readable-stream": {
+          "version": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
+          "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
+          "dev": true,
+          "requires": {
+            "core-util-is": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
+            "inherits": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+            "isarray": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+            "string_decoder": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz"
+          }
+        },
+        "through2": {
+          "version": "https://registry.npmjs.org/through2/-/through2-0.6.5.tgz",
+          "integrity": "sha1-QaucZ7KdVyCQcUEOHXp6lozTrUg=",
+          "dev": true,
+          "requires": {
+            "readable-stream": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
+            "xtend": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz"
+          }
+        },
+        "vinyl": {
+          "version": "https://registry.npmjs.org/vinyl/-/vinyl-0.4.6.tgz",
+          "integrity": "sha1-LzVsh6VQolVGHza76ypbqL94SEc=",
+          "dev": true,
+          "requires": {
+            "clone": "https://registry.npmjs.org/clone/-/clone-0.2.0.tgz",
+            "clone-stats": "https://registry.npmjs.org/clone-stats/-/clone-stats-0.0.1.tgz"
+          }
+        }
+      }
+    },
+    "vinyl-sourcemaps-apply": {
+      "version": "https://registry.npmjs.org/vinyl-sourcemaps-apply/-/vinyl-sourcemaps-apply-0.2.1.tgz",
+      "integrity": "sha1-q2VJ1h0XLCsbh75cUI0jnI74dwU=",
+      "dev": true,
+      "requires": {
+        "source-map": "https://registry.npmjs.org/source-map/-/source-map-0.5.6.tgz"
+      }
+    },
+    "which": {
+      "version": "https://registry.npmjs.org/which/-/which-1.2.14.tgz",
+      "integrity": "sha1-mofEN48D6CfOyvGs31bHNsAcFOU=",
+      "dev": true,
+      "requires": {
+        "isexe": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz"
+      }
+    },
+    "window-size": {
+      "version": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
+      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
+      "dev": true
+    },
+    "wordwrap": {
+      "version": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
+      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
+      "dev": true
+    },
+    "wrappy": {
+      "version": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "xtend": {
+      "version": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
+      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "dev": true
+    },
+    "yargs": {
+      "version": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
+      "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
+      "dev": true,
+      "requires": {
+        "camelcase": "https://registry.npmjs.org/camelcase/-/camelcase-1.2.1.tgz",
+        "cliui": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
+        "decamelize": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
+        "window-size": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz"
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
index 5949ff8..e3a65d2 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "jquery-lazy",
   "title": "jQuery & Zepto Lazy - Delayed Content, Image and Background Loader",
-  "version": "1.7.7",
+  "version": "1.7.8",
   "description": "Lazy is a fast, feature-rich and lightweight delayed content loading plugin for jQuery and Zepto. It's designed to speed up page loading times and decrease traffic to your users by only loading the content in view.",
   "main": "jquery.lazy.js",
   "homepage": "http://jquery.eisbehr.de/lazy",
diff --git a/plugins/README.md b/plugins/README.md
index 9979fbf..f851e6a 100644
--- a/plugins/README.md
+++ b/plugins/README.md
@@ -100,14 +100,14 @@ For more examples, take a look at the [existing plugins](https://github.com/eisb
 
 
 ## AJAX Loader
-**Names:** `ajax`, `get`, `post`  
+**Names:** `ajax`, `get`, `post`, `put`  
 **Parameters:** `data-src`, `data-method`, `data-type`  
 **Default for:** -
 
 The AJAX loader can receive data from a given url and paste the response to the inner html of the element.
 This is useful, when you want do load a bigger amount of content.
 Use `ajax` as the loader name by default.
-But there are even some shorthand names for specific request types `GET` and `POST` too.
+But there are even some shorthand names for specific request types `GET`, `POST` and `PUT` too.
 ```HTML
 <!-- simple GET request -->
 <div data-loader="ajax" data-src="ajax.html"></div>
@@ -120,6 +120,23 @@ But there are even some shorthand names for specific request types `GET` and `PO
 
 <!-- POST request-->
 <div data-loader="post" data-src="ajax.html"></div>
+
+<!-- PUT request-->
+<div data-loader="put" data-src="ajax.html"></div>
+```
+
+On `POST` and `PUT` requests, the callback `ajaxCreateData` will be executed before every AJAX call.
+If used, the callback function should return the value for the `data` parameter of jQuery's AJAX function.
+```HTML
+<div data-loader="post" data-src="ajax.html" data-value="post-data"></div>
+```
+
+```JS
+$('div').Lazy({
+   ajaxCreateData: function(element) {
+       return {name: element.data('value')};
+   } 
+});
 ```
 
 
diff --git a/plugins/jquery.lazy.ajax.js b/plugins/jquery.lazy.ajax.js
index 519c454..2c17534 100644
--- a/plugins/jquery.lazy.ajax.js
+++ b/plugins/jquery.lazy.ajax.js
@@ -1,8 +1,8 @@
 /*!
- * jQuery & Zepto Lazy - AJAX Plugin - v1.2
+ * jQuery & Zepto Lazy - AJAX Plugin - v1.3
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -10,21 +10,27 @@
  */
 ;(function($) {
     // load data by ajax request and pass them to elements inner html, like:
-    // <div data-loader="ajax" data-src"url.html" data-method="post" data-type="html"></div>
-    $.lazy("ajax", function(element, response) {
-        ajaxRequest(this, element, response, element.attr("data-method"));
+    // <div data-loader="ajax" data-src="url.html" data-method="post" data-type="html"></div>
+    $.lazy('ajax', function(element, response) {
+        ajaxRequest(this, element, response, element.attr('data-method'));
     });
 
     // load data by ajax get request and pass them to elements inner html, like:
-    // <div data-loader="get" data-src"url.html" data-type="html"></div>
-    $.lazy("get", function(element, response) {
-        ajaxRequest(this, element, response, "get");
+    // <div data-loader="get" data-src="url.html" data-type="html"></div>
+    $.lazy('get', function(element, response) {
+        ajaxRequest(this, element, response, 'GET');
     });
 
     // load data by ajax post request and pass them to elements inner html, like:
-    // <div data-loader="post" data-src"url.html" data-type="html"></div>
-    $.lazy("post", function(element, response) {
-        ajaxRequest(this, element, response, "post");
+    // <div data-loader="post" data-src="url.html" data-type="html"></div>
+    $.lazy('post', function(element, response) {
+        ajaxRequest(this, element, response, 'POST');
+    });
+
+    // load data by ajax put request and pass them to elements inner html, like:
+    // <div data-loader="put" data-src="url.html" data-type="html"></div>
+    $.lazy('put', function(element, response) {
+        ajaxRequest(this, element, response, 'PUT');
     });
 
     /**
@@ -35,10 +41,18 @@
      * @param {string} [method]
      */
     function ajaxRequest(instance, element, response, method) {
+        method = method.toUpperCase();
+
+        var data;
+        if ((method === 'POST' || method === 'PUT') && instance.config('ajaxCreateData')) {
+            data = instance.config('ajaxCreateData').apply(instance, [element]);
+        }
+
         $.ajax({
-            url: element.attr("data-src"),
-            type: method || "get",
-            dataType: element.attr("data-type") || "html",
+            url: element.attr('data-src'),
+            type: method === 'POST' || method === 'PUT' ? method : 'GET',
+            data: data,
+            dataType: element.attr('data-type') || 'html',
 
             /**
              * success callback
@@ -54,8 +68,9 @@
                 response(true);
 
                 // remove attributes
-                if( instance.config("removeAttribute") )
-                    element.removeAttr("data-src data-method data-type");
+                if (instance.config('removeAttribute')) {
+                    element.removeAttr('data-src data-method data-type');
+                }
             },
 
             /**
diff --git a/plugins/jquery.lazy.ajax.min.js b/plugins/jquery.lazy.ajax.min.js
index 720f4ee..dbdc7f5 100644
--- a/plugins/jquery.lazy.ajax.min.js
+++ b/plugins/jquery.lazy.ajax.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - AJAX Plugin v1.2 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
-!function(t){function a(a,e,o,n){t.ajax({url:e.attr("data-src"),type:n||"get",dataType:e.attr("data-type")||"html",success:function(t){e.html(t),o(!0),a.config("removeAttribute")&&e.removeAttr("data-src data-method data-type")},error:function(){o(!1)}})}t.lazy("ajax",function(t,e){a(this,t,e,t.attr("data-method"))}),t.lazy("get",function(t,e){a(this,t,e,"get")}),t.lazy("post",function(t,e){a(this,t,e,"post")})}(window.jQuery||window.Zepto);
\ No newline at end of file
+/*! jQuery & Zepto Lazy - AJAX Plugin v1.3 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
+!function(t){function a(a,e,n,o){o=o.toUpperCase();var i;"POST"!==o&&"PUT"!==o||!a.config("ajaxCreateData")||(i=a.config("ajaxCreateData").apply(a,[e])),t.ajax({url:e.attr("data-src"),type:"POST"===o||"PUT"===o?o:"GET",data:i,dataType:e.attr("data-type")||"html",success:function(t){e.html(t),n(!0),a.config("removeAttribute")&&e.removeAttr("data-src data-method data-type")},error:function(){n(!1)}})}t.lazy("ajax",function(t,e){a(this,t,e,t.attr("data-method"))}),t.lazy("get",function(t,e){a(this,t,e,"GET")}),t.lazy("post",function(t,e){a(this,t,e,"POST")}),t.lazy("put",function(t,e){a(this,t,e,"PUT")})}(window.jQuery||window.Zepto);
\ No newline at end of file
diff --git a/plugins/jquery.lazy.av.js b/plugins/jquery.lazy.av.js
index 1229103..2556be2 100644
--- a/plugins/jquery.lazy.av.js
+++ b/plugins/jquery.lazy.av.js
@@ -2,7 +2,7 @@
  * jQuery & Zepto Lazy - AV Plugin - v1.4
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -30,30 +30,32 @@
     //   <data-track kind="descriptions" src="descriptions.vtt" srclang="en"></data-track>
     //   <data-track kind="subtitles" src="subtitles.vtt" srclang="de"></data-track>
     // </video>
-    $.lazy(["av", "audio", "video"], ["audio", "video"], function(element, response) {
+    $.lazy(['av', 'audio', 'video'], ['audio', 'video'], function(element, response) {
         var elementTagName = element[0].tagName.toLowerCase();
 
-        if( elementTagName === "audio" || elementTagName === "video" ) {
-            var srcAttr = "data-src",
+        if (elementTagName === 'audio' || elementTagName === 'video') {
+            var srcAttr = 'data-src',
                 sources = element.find(srcAttr),
-                tracks = element.find("data-track"),
+                tracks = element.find('data-track'),
                 sourcesInError = 0,
 
             // create on error callback for sources
             onError = function() {
-                if( ++sourcesInError === sources.length )
+                if (++sourcesInError === sources.length) {
                     response(false);
+                }
             },
 
             // create callback to handle a source or track entry
             handleSource = function() {
                 var source = $(this),
                     type = source[0].tagName.toLowerCase(),
-                    attributes = source.prop("attributes"),
-                    target = $(type === srcAttr ? "<source>" : "<track>");
+                    attributes = source.prop('attributes'),
+                    target = $(type === srcAttr ? '<source>' : '<track>');
 
-                if( type === srcAttr )
-                    target.one("error", onError);
+                if (type === srcAttr) {
+                    target.one('error', onError);
+                }
 
                 $.each(attributes, function(index, attribute) {
                     target.attr(attribute.name, attribute.value);
@@ -63,36 +65,38 @@
             };
 
             // create event for successfull load
-            element.one("loadedmetadata", function() {
+            element.one('loadedmetadata', function() {
                 response(true);
             })
 
             // remove default callbacks to ignore loading poster image
-            .off("load error")
+            .off('load error')
 
             // load poster image
-            .attr("poster", element.attr("data-poster"));
+            .attr('poster', element.attr('data-poster'));
 
             // load by child tags
-            if( sources.length )
+            if (sources.length) {
                 sources.each(handleSource);
+            }
 
             // load by attribute
-            else if( element.attr(srcAttr) ) {
+            else if (element.attr(srcAttr)) {
                 // split for every entry by comma
-                $.each(element.attr(srcAttr).split(","), function(index, value) {
+                $.each(element.attr(srcAttr).split(','), function(index, value) {
                     // split again for file and file type
-                    var parts = value.split("|");
+                    var parts = value.split('|');
 
                     // create a source entry
-                    element.append($("<source>")
-                           .one("error", onError)
+                    element.append($('<source>')
+                           .one('error', onError)
                            .attr({src: parts[0].trim(), type: parts[1].trim()}));
                 });
 
                 // remove now obsolete attribute
-                if( this.config("removeAttribute") )
+                if (this.config('removeAttribute')) {
                     element.removeAttr(srcAttr);
+                }
             }
 
             else {
@@ -102,8 +106,9 @@
             }
 
             // load optional tracks
-            if( tracks.length )
+            if (tracks.length) {
                 tracks.each(handleSource);
+            }
         }
 
         else {
diff --git a/plugins/jquery.lazy.av.min.js b/plugins/jquery.lazy.av.min.js
index 4f21ae0..5f9e878 100644
--- a/plugins/jquery.lazy.av.min.js
+++ b/plugins/jquery.lazy.av.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - AV Plugin v1.4 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
+/*! jQuery & Zepto Lazy - AV Plugin v1.4 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
 !function(t){t.lazy(["av","audio","video"],["audio","video"],function(a,e){var r=a[0].tagName.toLowerCase();if("audio"===r||"video"===r){var o=a.find("data-src"),i=a.find("data-track"),n=0,c=function(){++n===o.length&&e(!1)},d=function(){var a=t(this),e=a[0].tagName.toLowerCase(),r=a.prop("attributes"),o=t("data-src"===e?"<source>":"<track>");"data-src"===e&&o.one("error",c),t.each(r,function(t,a){o.attr(a.name,a.value)}),a.replaceWith(o)};a.one("loadedmetadata",function(){e(!0)}).off("load error").attr("poster",a.attr("data-poster")),o.length?o.each(d):a.attr("data-src")?(t.each(a.attr("data-src").split(","),function(e,r){var o=r.split("|");a.append(t("<source>").one("error",c).attr({src:o[0].trim(),type:o[1].trim()}))}),this.config("removeAttribute")&&a.removeAttr("data-src")):e(!1),i.length&&i.each(d)}else e(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
diff --git a/plugins/jquery.lazy.iframe.js b/plugins/jquery.lazy.iframe.js
index 7dba729..1cf898d 100644
--- a/plugins/jquery.lazy.iframe.js
+++ b/plugins/jquery.lazy.iframe.js
@@ -2,7 +2,7 @@
  * jQuery & Zepto Lazy - iFrame Plugin - v1.5
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -14,29 +14,30 @@
     //
     // enable content error check with:
     // <iframe data-src="iframe.html" data-error-detect="true"></iframe>
-    $.lazy(["frame", "iframe"], "iframe", function(element, response) {
+    $.lazy(['frame', 'iframe'], 'iframe', function(element, response) {
         var instance = this;
 
-        if( element[0].tagName.toLowerCase() === "iframe" ) {
-            var srcAttr = "data-src",
-                errorDetectAttr = "data-error-detect",
+        if (element[0].tagName.toLowerCase() === 'iframe') {
+            var srcAttr = 'data-src',
+                errorDetectAttr = 'data-error-detect',
                 errorDetect = element.attr(errorDetectAttr);
 
             // default way, just replace the 'src' attribute
-            if( errorDetect !== "true" && errorDetect !== "1" ) {
+            if (errorDetect !== 'true' && errorDetect !== '1') {
                 // set iframe source
-                element.attr("src", element.attr(srcAttr));
+                element.attr('src', element.attr(srcAttr));
 
                 // remove attributes
-                if( instance.config("removeAttribute") )
-                    element.removeAttr(srcAttr + " " + errorDetectAttr);
+                if (instance.config('removeAttribute')) {
+                    element.removeAttr(srcAttr + ' ' + errorDetectAttr);
+                }
             }
 
             // extended way, even check if the document is available
             else {
                 $.ajax({
                     url: element.attr(srcAttr),
-                    dataType: "html",
+                    dataType: 'html',
                     crossDomain: true,
                     xhrFields: {withCredentials: true},
 
@@ -51,11 +52,12 @@
                         element.html(content)
 
                         // change iframe src
-                        .attr("src", element.attr(srcAttr));
+                        .attr('src', element.attr(srcAttr));
 
                         // remove attributes
-                        if( instance.config("removeAttribute") )
-                            element.removeAttr(srcAttr + " " + errorDetectAttr);
+                        if (instance.config('removeAttribute')) {
+                            element.removeAttr(srcAttr + ' ' + errorDetectAttr);
+                        }
                     },
 
                     /**
diff --git a/plugins/jquery.lazy.iframe.min.js b/plugins/jquery.lazy.iframe.min.js
index b433364..d3f7bac 100644
--- a/plugins/jquery.lazy.iframe.min.js
+++ b/plugins/jquery.lazy.iframe.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - iFrame Plugin v1.5 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
+/*! jQuery & Zepto Lazy - iFrame Plugin v1.5 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
 !function(t){t.lazy(["frame","iframe"],"iframe",function(r,a){var e=this;if("iframe"===r[0].tagName.toLowerCase()){var o=r.attr("data-error-detect");"true"!==o&&"1"!==o?(r.attr("src",r.attr("data-src")),e.config("removeAttribute")&&r.removeAttr("data-src data-error-detect")):t.ajax({url:r.attr("data-src"),dataType:"html",crossDomain:!0,xhrFields:{withCredentials:!0},success:function(t){r.html(t).attr("src",r.attr("data-src")),e.config("removeAttribute")&&r.removeAttr("data-src data-error-detect")},error:function(){a(!1)}})}else a(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
diff --git a/plugins/jquery.lazy.noop.js b/plugins/jquery.lazy.noop.js
index e2b02a2..fe97263 100644
--- a/plugins/jquery.lazy.noop.js
+++ b/plugins/jquery.lazy.noop.js
@@ -2,7 +2,7 @@
  * jQuery & Zepto Lazy - NOOP Plugin - v1.2
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -14,16 +14,16 @@
     // <div data-loader="noop"></div>
 
     // does not do anything, just a 'no-operation' helper ;)
-    $.lazy("noop", function() {});
+    $.lazy('noop', function() {});
 
     // does nothing, but response a successfull loading
-    $.lazy("noop-success", function(element, response) {
+    $.lazy('noop-success', function(element, response) {
         // use response function for Zepto
         response(true);
     });
 
     // does nothing, but response a failed loading
-    $.lazy("noop-error", function(element, response) {
+    $.lazy('noop-error', function(element, response) {
         // use response function for Zepto
         response(false);
     });
diff --git a/plugins/jquery.lazy.noop.min.js b/plugins/jquery.lazy.noop.min.js
index e783aeb..39f4b5a 100644
--- a/plugins/jquery.lazy.noop.min.js
+++ b/plugins/jquery.lazy.noop.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - NOOP Plugin v1.2 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
+/*! jQuery & Zepto Lazy - NOOP Plugin v1.2 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
 !function(o){o.lazy("noop",function(){}),o.lazy("noop-success",function(o,n){n(!0)}),o.lazy("noop-error",function(o,n){n(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
diff --git a/plugins/jquery.lazy.picture.js b/plugins/jquery.lazy.picture.js
index 67bc9be..81c225f 100644
--- a/plugins/jquery.lazy.picture.js
+++ b/plugins/jquery.lazy.picture.js
@@ -2,18 +2,18 @@
  * jQuery & Zepto Lazy - Picture Plugin - v1.3
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
  * http://www.gnu.org/licenses/gpl-2.0.html
  */
 ;(function($) {
-    var srcAttr = "data-src",
-        srcsetAttr = "data-srcset",
-        mediaAttr = "data-media",
-        sizesAttr = "data-sizes",
-        typeAttr = "data-type";
+    var srcAttr = 'data-src',
+        srcsetAttr = 'data-srcset',
+        mediaAttr = 'data-media',
+        sizesAttr = 'data-sizes',
+        typeAttr = 'data-type';
 
     // loads picture elements like:
     // <picture>
@@ -30,45 +30,46 @@
     //
     // or just with attributes in one line:
     // <picture data-src="default.jpg" data-srcset="1x.jpg 1x, 2x.jpg 2x, 3x.jpg 3x" data-media="(min-width: 600px)" data-sizes="" data-type="image/jpeg" />
-    $.lazy(["pic", "picture"], ["picture"], function(element, response) {
+    $.lazy(['pic', 'picture'], ['picture'], function(element, response) {
         var elementTagName = element[0].tagName.toLowerCase();
 
-        if( elementTagName === "picture" ) {
+        if (elementTagName === 'picture') {
             var sources = element.find(srcAttr),
-                image = element.find("data-img"),
-                imageBase = this.config("imageBase") || "";
+                image = element.find('data-img'),
+                imageBase = this.config('imageBase') || '';
 
             // handle as child elements
-            if( sources.length ) {
+            if (sources.length) {
                 sources.each(function() {
-                    renameElementTag($(this), "source", imageBase);
+                    renameElementTag($(this), 'source', imageBase);
                 });
 
                 // create img tag from child
-                if( image.length === 1 ) {
-                    image = renameElementTag(image, "img", imageBase);
+                if (image.length === 1) {
+                    image = renameElementTag(image, 'img', imageBase);
 
                     // bind event callbacks to new image tag
-                    image.on("load", function() {
+                    image.on('load', function() {
                         response(true);
-                    }).on("error", function() {
+                    }).on('error', function() {
                         response(false);
                     });
 
-                    image.attr("src", image.attr(srcAttr));
+                    image.attr('src', image.attr(srcAttr));
 
-                    if( this.config("removeAttribute") ) {
+                    if (this.config('removeAttribute')) {
                         image.removeAttr(srcAttr);
                     }
                 }
 
                 // create img tag from attribute
-                else if( element.attr(srcAttr) ) {
+                else if (element.attr(srcAttr)) {
                     // create image tag
                     createImageObject(element, imageBase + element.attr(srcAttr), response);
 
-                    if( this.config("removeAttribute") )
+                    if (this.config('removeAttribute')) {
                         element.removeAttr(srcAttr);
+                    }
                 }
 
                 // pass error state
@@ -81,7 +82,7 @@
             // handle as attributes
             else if( element.attr(srcsetAttr) ) {
                 // create source elements before img tag
-                $("<source>").attr({
+                $('<source>').attr({
                     media: element.attr(mediaAttr),
                     sizes: element.attr(sizesAttr),
                     type: element.attr(typeAttr),
@@ -93,8 +94,8 @@
                 createImageObject(element, imageBase + element.attr(srcAttr), response);
 
                 // remove attributes from parent picture element
-                if( this.config("removeAttribute") ) {
-                    element.removeAttr(srcAttr + " " + srcsetAttr + " " + mediaAttr + " " + sizesAttr + " " + typeAttr);
+                if (this.config('removeAttribute')) {
+                    element.removeAttr(srcAttr + ' ' + srcsetAttr + ' ' + mediaAttr + ' ' + sizesAttr + ' ' + typeAttr);
                 }
             }
 
@@ -120,12 +121,12 @@
      * @return {jQuery|object}
      */
     function renameElementTag(element, toType, imageBase) {
-        var attributes = element.prop("attributes"),
-            target = $("<" + toType + ">");
+        var attributes = element.prop('attributes'),
+            target = $('<' + toType + '>');
 
         $.each(attributes, function(index, attribute) {
             // build srcset with image base
-            if( attribute.name === "srcset" || attribute.name === srcAttr ) {
+            if (attribute.name === 'srcset' || attribute.name === srcAttr) {
                 attribute.value = getCorrectedSrcSet(attribute.value, imageBase);
             }
 
@@ -145,13 +146,13 @@
      */
     function createImageObject(parent, src, response) {
         // create image tag
-        var imageObj = $("<img>")
+        var imageObj = $('<img>')
 
         // create image tag an bind callbacks for correct response
-        .one("load", function() {
+        .one('load', function() {
             response(true);
         })
-        .one("error", function() {
+        .one('error', function() {
             response(false);
         })
 
@@ -159,7 +160,7 @@
         .appendTo(parent)
 
         // set src attribute at last to prevent early kick-in
-        .attr("src", src);
+        .attr('src', src);
 
         // call after load even on cached image
         imageObj.complete && imageObj.load(); // jshint ignore : line
@@ -172,13 +173,13 @@
      * @returns {string}
      */
     function getCorrectedSrcSet(srcset, imageBase) {
-        if( imageBase ) {
+        if (imageBase) {
             // trim, remove unnecessary spaces and split entries
-            var entries = srcset.split(",");
-            srcset = "";
+            var entries = srcset.split(',');
+            srcset = '';
 
-            for( var i = 0, l = entries.length; i < l; i++ ) {
-                srcset += imageBase + entries[i].trim() + (i !== l - 1 ? "," : "");
+            for (var i = 0, l = entries.length; i < l; i++) {
+                srcset += imageBase + entries[i].trim() + (i !== l - 1 ? ',' : '');
             }
         }
 
diff --git a/plugins/jquery.lazy.picture.min.js b/plugins/jquery.lazy.picture.min.js
index 4705b3e..b1152be 100644
--- a/plugins/jquery.lazy.picture.min.js
+++ b/plugins/jquery.lazy.picture.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - Picture Plugin v1.3 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
+/*! jQuery & Zepto Lazy - Picture Plugin v1.3 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
 !function(t){function e(e,a,n){var o=e.prop("attributes"),c=t("<"+a+">");return t.each(o,function(t,e){"srcset"!==e.name&&e.name!==i||(e.value=r(e.value,n)),c.attr(e.name,e.value)}),e.replaceWith(c),c}function a(e,a,r){var i=t("<img>").one("load",function(){r(!0)}).one("error",function(){r(!1)}).appendTo(e).attr("src",a);i.complete&&i.load()}function r(t,e){if(e){var a=t.split(",");t="";for(var r=0,i=a.length;r<i;r++)t+=e+a[r].trim()+(r!==i-1?",":"")}return t}var i="data-src";t.lazy(["pic","picture"],["picture"],function(n,o){if("picture"===n[0].tagName.toLowerCase()){var c=n.find(i),s=n.find("data-img"),u=this.config("imageBase")||"";c.length?(c.each(function(){e(t(this),"source",u)}),1===s.length?(s=e(s,"img",u),s.on("load",function(){o(!0)}).on("error",function(){o(!1)}),s.attr("src",s.attr(i)),this.config("removeAttribute")&&s.removeAttr(i)):n.attr(i)?(a(n,u+n.attr(i),o),this.config("removeAttribute")&&n.removeAttr(i)):o(!1)):n.attr("data-srcset")?(t("<source>").attr({media:n.attr("data-media"),sizes:n.attr("data-sizes"),type:n.attr("data-type"),srcset:r(n.attr("data-srcset"),u)}).appendTo(n),a(n,u+n.attr(i),o),this.config("removeAttribute")&&n.removeAttr(i+" data-srcset data-media data-sizes data-type")):o(!1)}else o(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
diff --git a/plugins/jquery.lazy.script.js b/plugins/jquery.lazy.script.js
index 9d6c23b..c732301 100644
--- a/plugins/jquery.lazy.script.js
+++ b/plugins/jquery.lazy.script.js
@@ -2,7 +2,7 @@
  * jQuery & Zepto Lazy - Script Plugin - v1.2
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -11,13 +11,14 @@
 ;(function($) {
     // loads javascript files for script tags, like:
     // <script data-src="file.js" type="text/javascript"></script>
-    $.lazy(["js", "javascript", "script"], "script", function(element, response) {
-        if( element[0].tagName.toLowerCase() == "script" ) {
-            element.attr("src", element.attr("data-src"));
+    $.lazy(['js', 'javascript', 'script'], 'script', function(element, response) {
+        if (element[0].tagName.toLowerCase() === 'script') {
+            element.attr('src', element.attr('data-src'));
 
             // remove attribute
-            if( this.config("removeAttribute") )
-                element.removeAttr("data-src");
+            if (this.config('removeAttribute')) {
+                element.removeAttr('data-src');
+            }
         }
         else {
             // use response function for Zepto
diff --git a/plugins/jquery.lazy.script.min.js b/plugins/jquery.lazy.script.min.js
index c840456..d66597a 100644
--- a/plugins/jquery.lazy.script.min.js
+++ b/plugins/jquery.lazy.script.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - Script Plugin v1.2 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
-!function(t){t.lazy(["js","javascript","script"],"script",function(t,r){"script"==t[0].tagName.toLowerCase()?(t.attr("src",t.attr("data-src")),this.config("removeAttribute")&&t.removeAttr("data-src")):r(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
+/*! jQuery & Zepto Lazy - Script Plugin v1.2 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
+!function(t){t.lazy(["js","javascript","script"],"script",function(t,r){"script"===t[0].tagName.toLowerCase()?(t.attr("src",t.attr("data-src")),this.config("removeAttribute")&&t.removeAttr("data-src")):r(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
diff --git a/plugins/jquery.lazy.vimeo.js b/plugins/jquery.lazy.vimeo.js
index d6efbd1..2128894 100644
--- a/plugins/jquery.lazy.vimeo.js
+++ b/plugins/jquery.lazy.vimeo.js
@@ -2,7 +2,7 @@
  * jQuery & Zepto Lazy - Vimeo Plugin - v1.1
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -11,14 +11,15 @@
 ;(function($) {
     // load vimeo video iframe, like:
     // <iframe data-loader="vimeo" data-src="176894130" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    $.lazy("vimeo", function(element, response) {
-        if( element[0].tagName.toLowerCase() === "iframe" ) {
+    $.lazy('vimeo', function(element, response) {
+        if (element[0].tagName.toLowerCase() === 'iframe') {
             // pass source to iframe
-            element.attr("src", "https://player.vimeo.com/video/" + element.attr("data-src"));
+            element.attr('src', 'https://player.vimeo.com/video/' + element.attr('data-src'));
 
             // remove attribute
-            if( this.config("removeAttribute") )
-                element.removeAttr("data-src");
+            if (this.config('removeAttribute')) {
+                element.removeAttr('data-src');
+            }
         }
 
         else {
diff --git a/plugins/jquery.lazy.vimeo.min.js b/plugins/jquery.lazy.vimeo.min.js
index 0b15ea2..896845d 100644
--- a/plugins/jquery.lazy.vimeo.min.js
+++ b/plugins/jquery.lazy.vimeo.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - Vimeo Plugin v1.1 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
+/*! jQuery & Zepto Lazy - Vimeo Plugin v1.1 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
 !function(t){t.lazy("vimeo",function(t,e){"iframe"===t[0].tagName.toLowerCase()?(t.attr("src","https://player.vimeo.com/video/"+t.attr("data-src")),this.config("removeAttribute")&&t.removeAttr("data-src")):e(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file
diff --git a/plugins/jquery.lazy.youtube.js b/plugins/jquery.lazy.youtube.js
index bf9f076..b7f95c4 100644
--- a/plugins/jquery.lazy.youtube.js
+++ b/plugins/jquery.lazy.youtube.js
@@ -2,7 +2,7 @@
  * jQuery & Zepto Lazy - YouTube Plugin - v1.4
  * http://jquery.eisbehr.de/lazy/
  *
- * Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
  *
  * Dual licensed under the MIT and GPL-2.0 licenses:
  * http://www.opensource.org/licenses/mit-license.php
@@ -11,14 +11,15 @@
 ;(function($) {
     // load youtube video iframe, like:
     // <iframe data-loader="yt" data-src="1AYGnw6MwFM" width="560" height="315" frameborder="0" allowfullscreen></iframe>
-    $.lazy(["yt", "youtube"], function(element, response) {
-        if( element[0].tagName.toLowerCase() === "iframe" ) {
+    $.lazy(['yt', 'youtube'], function(element, response) {
+        if (element[0].tagName.toLowerCase() === 'iframe') {
             // pass source to iframe
-            element.attr("src", "https://www.youtube.com/embed/" + element.attr("data-src") + "?rel=0&amp;showinfo=0");
+            element.attr('src', 'https://www.youtube.com/embed/' + element.attr('data-src') + '?rel=0&amp;showinfo=0');
 
             // remove attribute
-            if( this.config("removeAttribute") )
-                element.removeAttr("data-src");
+            if (this.config('removeAttribute')) {
+                element.removeAttr('data-src');
+            }
         }
 
         else {
diff --git a/plugins/jquery.lazy.youtube.min.js b/plugins/jquery.lazy.youtube.min.js
index 846f298..d6a484a 100644
--- a/plugins/jquery.lazy.youtube.min.js
+++ b/plugins/jquery.lazy.youtube.min.js
@@ -1,2 +1,2 @@
-/*! jQuery & Zepto Lazy - YouTube Plugin v1.4 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2017 Daniel 'Eisbehr' Kern */
+/*! jQuery & Zepto Lazy - YouTube Plugin v1.4 - http://jquery.eisbehr.de/lazy - MIT&GPL-2.0 license - Copyright 2012-2018 Daniel 'Eisbehr' Kern */
 !function(t){t.lazy(["yt","youtube"],function(t,e){"iframe"===t[0].tagName.toLowerCase()?(t.attr("src","https://www.youtube.com/embed/"+t.attr("data-src")+"?rel=0&amp;showinfo=0"),this.config("removeAttribute")&&t.removeAttr("data-src")):e(!1)})}(window.jQuery||window.Zepto);
\ No newline at end of file