[Bug 26366] New: It's possible to go fullscreen with an element not in the document

https://www.w3.org/Bugs/Public/show_bug.cgi?id=26366

            Bug ID: 26366
           Summary: It's possible to go fullscreen with an element not in
                    the document
           Product: WebAppsWG
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Fullscreen
          Assignee: annevk@annevk.nl
          Reporter: philipj@opera.com
        QA Contact: public-webapps-bugzilla@w3.org
                CC: mike@w3.org, public-webapps@w3.org

This is one example of a class of problems caused by the checks made
synchronously in requestFullscreen() not necessarily holding when the rest of
the function runs async.

To go fullscreen with an element not in the document:
element.requestFullscreen();
element.parentNode.removeChild(element);

To end up with a fullscreen element stack with siblings are put on the stack:
element.requestFullscreen();
element.nextSibling.requestFullscreen();

I'm not sure what bad things can result, but it seems silly to make checks that
aren't actually guaranteed to hold.

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Received on Thursday, 17 July 2014 08:57:10 UTC