id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
14744	[Safari] Failing embedbase tests	Marek Lewandowski		"2 unit tests are failing in this test suite:

```
tests/plugins/embedbase/undo test undo and redo after creation
Error
Error: IndexSizeError: DOM Exception 1
tests/plugins/embedbase/undo test undo and redo after edition
Unexpected error: IndexSizeError: DOM Exception 1
Expected: undefined (undefined)
Actual:   undefined (undefined)
Error
Error: IndexSizeError: DOM Exception 1
tests/plugins/embedbase/undo test undo and redo after creation and edition
Unexpected error: IndexSizeError: DOM Exception 1
Expected: undefined (undefined)
Actual:   undefined (undefined)
```

It started to appear after #14539. However I've followed the steps that TC is doing manually and the issue does not appear to be there, so it's likely due to a way that the test is written."	Bug	new	Normal	CKEditor 4.5.11	General	4.5.11