New Twiddle

templates.application\.hbs

<p>Open Webkit Inspector in Safari, and see that both the jpg and png sources are downloaded.</p>


<picture>
  <source srcset="https://is3-ssl.mzstatic.com/image/thumb/Purple113/v4/42/92/7a/42927acc-44b0-62fc-ddd3-8d6199347dbd/pr_source.png/643x0w.jpeg 1x,https://is3-ssl.mzstatic.com/image/thumb/Purple113/v4/42/92/7a/42927acc-44b0-62fc-ddd3-8d6199347dbd/pr_source.png/1286x0w.jpeg 2x" type="image/jpeg">

	<img src="https://is3-ssl.mzstatic.com/image/thumb/Purple113/v4/42/92/7a/42927acc-44b0-62fc-ddd3-8d6199347dbd/pr_source.png/643x0w.png" style="" alt="" height="297" width="643">

</picture>

twiddle\.json

{
  "version": "0.17.1",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js",
    "ember": "3.18.1",
    "ember-template-compiler": "3.18.1",
    "ember-testing": "3.18.1"
  },
  "addons": {
    "@glimmer/component": "1.0.0"
  }
}