@bender-ui: collapsed
@bender-tags: 4.17.0, clipboard, 4874, bug
@bender-ckeditor-plugins: wysiwygarea, toolbar, undo, basicstyles, image, clipboard, sourcearea

 1. Drag an image from the file system (using Explorer on Windows or Finder on Mac) and drop it in the editor.

**Expected** No image is inserted. "Log output" shows: "Custom image drop handling: data received".

**Unexpected** Image is inserted into editor.
