id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
14426	image2 plugin should have a way to allow for custom image tags that won't be upcast	Matthew		"== Steps to reproduce ==

I have a plugin that generates <img> placeholders and when image2 is installed it's causing a number of errors because upcastWidgetElement is attempting to convert it to a widget. There is already a special case in here to avoid the 'data-cke-realelement' but it would be nice if there was also a way to specify a editor.config property for additional class(es) (or attributes) that could be used to flag other <img> that we also didn't want to be processed by this method. This would avoid modification of this method.

I could possibly add the data-cke-realelement attribute to the img but that would still not fix any previous placed images.

Thanks!

== Expected result ==

Only image tags not part of this list are upcast

== Actual result ==

All image tags are upcast
== Other details (browser, OS, CKEditor version, installed plugins) ==
"	New Feature	closed	Normal		UI : Widgets		duplicate