When copy images between editor their src may nee to be corrected (different domains or base paths)

[Piotrek Koszuliński]

See #5218, #641and dozen other tickets. They were a reason to introduce data-cke-saved-src which is not affected when copying images or getting data from editor. This attribute keeps the exact value set by the user.

However, it has a side effect. When copying image from editor1 to editor2 and:

• if these editors work in different domains or under different paths (or basePaths are set differently),
• and if the source was set relatively to the editor path,

then after copy and paste such image will have a URL relative to editor1 while it operates under different path (that of editor2). Hence - it won't display.

Funny thing is that browsers copy a full path with the domain to the clipboard, so if we let browser do the job, everything would work. However, exactly this feature of the browsers was a reason to introduce data-cke-saved-src.

[Piotrek Koszuliński]

There's no reasonable fix for this issue. It is a side effect of a fix for much more important problem (that reported in mentioned tickets). Therefore I'm closing this ticket as "won't fix".