[Bug 26568] New: Nothing stopping mis-nested fullscreen in iframes?

https://www.w3.org/Bugs/Public/show_bug.cgi?id=26568

            Bug ID: 26568
           Summary: Nothing stopping mis-nested fullscreen in iframes?
           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

Let's say we have two sibling iframes, iframe1 and iframe2, and that they're
same-origin. First enter fullscreen with an element inside iframe1. Then
request fullscreen for an element inside iframe2. Since iframe2's document's
fullscreen element stack is empty, it seems like nothing's stopping it from
going fullscreen.

You will end up with a cross-document set of fullscreen elements that isn't a
simple chain, but a tree, which seems weird. Some check on ancestor browsing
contexts is probably needed in the fullscreen element ready check.

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Received on Wednesday, 13 August 2014 10:55:30 UTC