[Webkit-unassigned] [Bug 85072] New: [soup] URL of the ResourceResponse passed to willSendRequest is incorrect

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=85072

           Summary: [soup] URL of the ResourceResponse passed to
                    willSendRequest is incorrect
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: christophe.dumez at intel.com


In case on redirection, the ResourceHandleSoup::restartedCallback() will be called. This will construct a ResourceRequest and a ResourceResponse (redirect response) and pass them to willSendRequest().

In case of a redirection from X to Y, one would expect that the objects passed to willSendRequest() are:
1. ResourceRequest.url() == Y
2. ResourceResponse.url() == X

Unfortunately, this is currently not the case because the uri of the SoupMessage passed to ResourceHandleSoup::restartedCallback() was already updated to the redirected one.
Therefore, we end up with:
1. ResourceRequest.url() == Y
2. ResourceResponse.url() == Y

As a consequence, the FrameLoaderClient has no way to know the original URL before redirection and we cannot display it properly in the DRT if dumpResourceLoadCallbacks() is enabled.

It is possible to notice the issue with:
http/tests/misc/will-send-request-returns-null-on-redirect.html

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