diff --git a/app/assets/javascripts/order_policies.coffee b/app/assets/javascripts/order_policies.coffee
index cce9a82af..2dc13492f 100644
--- a/app/assets/javascripts/order_policies.coffee
+++ b/app/assets/javascripts/order_policies.coffee
@@ -71,7 +71,11 @@ $(document).ready ->
     # to retrieve data specific to the selected values
     if selectedValues.length > 0
       # Not providing any concept ids will result in all items coming back, avoid that
-      $.ajax '/provider_collections?' + $.param('concept_id': selectedValues) + '&page_size=' + selectedValues.length,
+      $.ajax '/provider_collections',
+        method: 'POST'
+        data: 
+          concept_id: selectedValues
+          page_size: selectedValues.length
         success: (data) ->
           # Sets the selected values of the chooser
           collectionsChooser.setToVal(data.items)
diff --git a/app/assets/javascripts/service_management.coffee b/app/assets/javascripts/service_management.coffee
index 29b505ee9..3e40d1f39 100644
--- a/app/assets/javascripts/service_management.coffee
+++ b/app/assets/javascripts/service_management.coffee
@@ -91,7 +91,11 @@ $(document).ready ->
     # to retrieve data specific to the selected values
     if selectedValues.length > 0
       # Not providing any concept ids will result in all items coming back, avoid that
-      $.ajax '/provider_collections?' + $.param('concept_id': selectedValues) + '&page_size=' + selectedValues.length,
+      $.ajax '/provider_collections',
+        method: 'POST'
+        data: 
+          concept_id: selectedValues
+          page_size: selectedValues.length
         success: (data) ->
           # Sets the selected values of the chooser
           collectionsChooser.setToVal(data.items)
diff --git a/config/routes.rb b/config/routes.rb
index 7d38127a2..c451f7706 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -72,6 +72,7 @@
 
   # API Endpoints for Chooser implementations
   get 'provider_collections' => 'manage_cmr#provider_collections'
+  post 'provider_collections' => 'manage_cmr#provider_collections'
   get 'service_implementations_with_datasets' => 'manage_cmr#service_implementations_with_datasets'
   get 'datasets_for_service_implementation' => 'manage_cmr#datasets_for_service_implementation'