CKEditor - Change image source

Question

I have made some custom functionality to the CKEditor. In short, it shows a div tag with 5 links, for Small, Medium, Large X-Large and Original size.

When I click th

Answer 1

The src of images and href of links are protected in CKEditor to avoid browser bugs (when copying, dragging or sometimes even just loading the content), so you must update also this custom attribute:

data-cke-saved-src