1195457 - Embed element with tabindex="0" breaks sequential focus navigation

Status: UNCONFIRMED

(Core :: DOM: UI Events & Focus Handling, defect)

Description

[Rodney Rehm]

Attachment: gecko-embed-tabindex-0.html

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:40.0) Gecko/20100101 Firefox/40.0
Build ID: 20150807085045

Steps to reproduce:

Create <embed tabindex="0"> and add it to the DOM, press the Tab key until you reach the element, press the Tab again to leave it.


Actual results:

Focus is not removed from the element upon pressing Tab or Shift+Tab


Expected results:

Focus should have moved to the next keyboard focusable element

Comment 1

[Rodney Rehm]

This issue may be related to https://bugzilla.mozilla.org/show_bug.cgi?id=1185657
a live version of the demo file is available at http://medialize.github.io/ally.js/tests/browser-bugs/gecko-embed-tabindex-0.html

This may be related to quicktime (assumed because focus is not trapped when the quicktime plugin is not activated).

Comment 2

[Rodney Rehm]

I can confirm the assumption that this is related to the quicktime plugin. Focus is not trapped when embedding an SVG.