[webkit-dev] Use of Frame by ResourceHandle

Adam Barth abarth at webkit.org
Sun Sep 12 12:37:59 PDT 2010

On Sun, Sep 12, 2010 at 12:33 PM, David Levin <levin at chromium.org> wrote:
> On Sat, Sep 11, 2010 at 11:07 PM, Adam Barth <abarth at webkit.org> wrote:
>> Having fake versions of objects add complexity to all the code that
>> expects to talk to real versions of those objects.  For example,
>> SVG-in-<img> creates a ton of fake objects and has been the source of
>> a lot of bugs (including security bugs).  It seems like having a
>> notion of a networking context makes more sense than pretending shared
>> workers are associated with a rectangular region of a screen
>> somewhere.
> A clarification:
> The "fake" frame only happens in Chromium. It is due to the fact that
> workers are in a different process from the real frame.
> In !chromium platforms, the real frame is used to send the request for both
> dedicated and shared workers. (It is a bit unfortunate in the shared worker
> case because closing that frame will kill the xhr request but the reasoning
> has been that code should be resilient to xhr failures as they can happen
> for a number of reasons.)

Once the Frame is gone, XHR stops functioning for the SharedWorker
permanently?  That sounds like a bug that should be fixed.


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