Syntax error when passing the runOnly option

[acha5066]

When using the default config the tests run correctly:

  parameters: {
    // Optional parameter to center the component in the Canvas. More info: https://storybook.js.org/docs/react/configure/story-layout
    layout: "centered",
    a11y: {},
  },

[Search.stories.jsx component] Test Suite
───────────────────────────────────────────────────────────────────────────────
ℹ Connected to selenium_chrome on port 4444 (242ms).
  Using: chrome (94.0.4606.61) on LINUX.


  Running "Default" story:
───────────────────────────────────────────────────────────────────────────────────────────────────
  ✖ NightwatchAssertError
   There are accessibility violations; please see the complete report for details.

    Read More : 
    https://github.com/dequelabs/axe-core/blob/develop/doc/rule-descriptions.md 

  FAILED: 1 assertions failed (1.04s)

I want to specify tags to run using the runOnly options like below:

parameters: {
    // Optional parameter to center the component in the Canvas. More info: https://storybook.js.org/docs/react/configure/story-layout
    layout: "centered",
    a11y: {
      options: {
        runOnly: {
          type: "tag",
          values: ["wcag2a", "wcag2aa"],
        },
      },
    },
  },

Which results in a syntax error?

[@nightwatch/storybook] Found 1 total number of story files, of which 1 were ignored due to errors.
[@nightwatch/storybook] Found 1 total number of story files, of which 1 were ignored due to errors.
[@nightwatch/storybook] Found 1 total number of story files, of which 1 were ignored due to errors.
Wrote HTML report file to: /app/docroot/modules/custom/foobar_react/js/tests_output/nightwatch-html-report/index.html

 ✖ SyntaxError
  Cannot use import statement outside a module
   
  In order to be able to load JSX files, one of these plugins is needed:
  - @nightwatch/react
  - @nightwatch/storybook (only if using Storybook in your project)
     

   Try fixing by :
   1. Using ES6 import/export syntax? - make sure to specify "type=module" in your package.json or use .mjs extension.

   Read More : 
   https://nodejs.org/api/esm.html 

Versions:

"@nightwatch/storybook": "^0.1.15",
"nightwatch": "^3.1.3",
"storybook": "^7.4.2",

[acha5066]

I traced it to the object not having an elements key in the readParams method of csf.js

function readParams(obj, acc = {}) {

  if (Array.isArray(obj.properties)) {
    obj.properties.forEach(prop => {
      if (prop.value && prop.key) {
        if (Array.isArray(prop.value.properties)) {

          acc[prop.key.name] = prop.value.properties.reduce((prev, prop) => {
            if (prop.value.value) {
              prev[prop.key.name] = prop.value.value;

              return prev;
            }

            prev[prop.key.name] = prop.value.elements.map((element) => {
              const item = element.properties.reduce((elementPrev, elementProp) => {
                elementPrev[elementProp.key.name] = elementProp.value.value;

                return elementPrev;
              }, {});

              return item;
            });

            return prev;
          }, {});

        } else {
          acc[prop.key.name] = prop.value.value;
        }

      }
    });
  }

but no idea why it's not present.