v2.1.0

What's new?

You can now pass your own domTransformation option to percySnapshot. This will allow you to add elements to the clone of the DOM that Percy captures (#188). For example:

test('passing a custom DOM transform', async function(assert) {
  await visit('/');
  assert.equal(currentURL(), '/');

  await percySnapshot(assert, {
    domTransformation: function(clonedDom) {
      let $scopedRoot = clonedDom.querySelector('#ember-testing');
      let $h1 = document.createElement('h1');
      $h1.innerText = 'Hello modified DOM!';
      $scopedRoot.appendChild($h1);

      return clonedDom;
    }
});

This could be useful if you have an Ember addon which adds DOM elements outside of the Ember application root (which is ember-testing in tests). You could then collect those elements and add them back into the DOM clone Percy captures.