[Webkit-unassigned] [Bug 27392] New: Hangs / crashes when a website uses long running XMLHttpRequests and iframes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=27392

           Summary: Hangs / crashes when a website uses long running
                    XMLHttpRequests and iframes
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Critical
          Priority: P2
         Component: Frames
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mario.rasch at web.de


I implemented a website for one of my customers that uses

a) ASP.NET AJAX 3.5
b) long running XMLHttpRequests initiated using ASP.NET AJAX functionality
(approx. 30 seconds between request start and response)
c) an iframe

When the page in the iframe is reloaded due to form postbacks initiated by user
interaction during the aforementioned XMLHttpRequest still waits for a server
response, Safari 4.0.2 / WebKit (nightl build from July  17th) hangs and
sometimes finally crashes. I can observe this behaviour with Safari 4.0.2 on an
Intel Mac and a PC. On the PC I confirmed that the page in the iframe continues
to load normally when the XMLHttpRequest gets a reponse from the server so that
the XMLHttpRequest ends.

The same website can be viewed without problems e.g. in Firefox 2 / 3 / 3.1 /
3.5 / 3.5.1 and IE 7 / IE 8 and Opera 9 / 10. Alas, as the website is used
internally at this time, I cannot provide a test link and therefore I hope this
issue can be reproduced without a test link.

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