Merge pull request #293 from ckeditor/t/292

Fix: ImageTextAlternative click outside handler scope. Closes #292.

src/imagetextalternative/imagetextalternativeui.js

@@ -144,7 +144,7 @@ export default class ImageTextAlternativeUI extends Plugin {
  clickOutsideHandler( {
  emitter: this._form,
  activator: () => this._isVisible,
- contextElements: [ this._form.element ],
+ contextElements: [ this._balloon.view.element ],
  callback: () => this._hideForm()
  } );
  }