feat(dist-custom-elements): new autoLoader option

[johnjenkins]

What is the current behavior?

GitHub Issue Number: N/A

What is the new behavior?

Generate an auto-loader script for dist-custom-elements that uses MutationObserver to lazily load and define custom elements as they appear in the DOM.

export const config: Config = {
  namespace: 'AutoLoader',
  outputTargets: [
    {
      type: 'dist-custom-elements',
      autoLoader: true,
      /** // or With options
      * autoLoader: {
      *   fileName: 'my-loader.js',
      *   autoStart: false
      * }
     */
    },
  ],
};

Documentation

TODO

Does this introduce a breaking change?

• Yes
• No

Testing

Spec and wdio

Other information