5 By default, as of tiny 6, the editor would use srcdoc which prevents cookies being sent with images in Firefox as
6 it's considered cross origin. This removes that usage to work around this case:
8 [Relevant TinyMCE issue](https://github.com/tinymce/tinymce/issues/7746).
10 Source code change applied:
16 t.contentDocument.open();t.contentDocument.write(e.iframeHTML);t.contentDocument.close();