Hi Team, Another bug from Chrome Monorail: crbug.com/534466 Test Case: data:text/html,<h1 contenteditable>W<u><span contenteditable=false>XY</span></u>Z</h1> ^ Open this in STP172 and try to drag select 'XY' and the selection rect 'blue' will also go over 'W' for no good reason. > Double Clicking works on XY and select correctly. > If you do from Y side to X or X side to Y selection in reverse, it select have 'selection' rect on 'W' I think we can fix these issues, so raising this bug. Also adding 'BrowserCompat' since both Chrome Canary 116 and Firefox Nightly 116 works as expected and don't have issue. Thanks!