Created attachment 147527 [details] Repro ASSERTION FAILED: isEditablePosition(editingPosition) Select from "AFTER HOST" to "hoge 1", and press JustifyNone. This will trigger ASSERTION FAILURE.
According to the spec, surprisingly this is correct behavior... So let's make this INVALID.
(In reply to comment #1) > According to the spec, surprisingly this is correct behavior... > So let's make this INVALID. Sorry I commented on the wrong place. Reopened.
Try JustifyFull and JustifyNone. Sometimes only one pressing the button won't cause a crash.
I found that this actually does not related to Shadow DOM. This happens event if no Shadow DOM is attached.
Created attachment 149054 [details] Repro
(In reply to comment #4) > I found that this actually does not related to Shadow DOM. > This happens event if no Shadow DOM is attached. Oops too bad English... I found that this bug actually is not related to Shadow DOM. This happens even if Shadow DOM is not used.
Since this is not related to Shadow DOM, I remove dependency from Bug 82697. But we should fix this anyway.