Browser-specific behaviour pasting images into CKEditor?

[Dreadknux]

One of my users made me aware of this, does anyone know if this is normal (and if so, what the story is)?

When copying an image on a website (i.e. using "Copy Image" instead of "Copy Image Location"), and then pasting it into CKEditor, the behaviour differs in Firefox (have tested FF/Chrome/Edge).

 

Firefox: Upload a PNG of the image via plupload and insert it into the editor.

 

Chrome (screenshotted)/Edge: Insert an HTML image into the editor with the original URL as src.

[bfarber]

Different browsers behave differently when copying an image, and we try to accommodate all behaviors.