id summary reporter owner description type status priority milestone component version resolution keywords cc 14671 Undo/redo widget bug Andrew "== Steps to reproduce == 1. go to the simplebox example at: http://ckeditor.com/demo#widgets 2. enter a fair amount of text into the content section of the simplebox example 3. after N amount of redo/undo (CTRL+Z / CTRL + Y on the linked page but also the undo/redo buttons on my own project) the error 'IndexSizeError: Index or size is negative or greater than the allowed amount' will be thrown for any undo/redo from then on. == Expected result == Expected to undo/redo without errors == Actual result == Errors are thrown when undo/redo is used after a certain amount of calls within the editable area of an editable widget == Other details (browser, OS, CKEditor version, installed plugins) == As mention above, this happens with both CTRL+Z/CTRL+Y and undo/redo buttons on the editor. Browsers: Chrome 50.0.2661.102 Firefox: 46.0.1 IE 11: 11.0.0 This bug will be triggered 100% of the time albeit with variable amount of undo/redo calls (can be within the first 5 or so or up to 20+ calls)." Bug closed Normal UI : Widgets expired