[Webkit-unassigned] [Bug 103977] New: Cross Origin XMLHttpRequest can not expose "Location" header even if it is indicated in Access-Control-Expose-Headers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=103977

           Summary: Cross Origin XMLHttpRequest can not expose "Location"
                    header even if it is indicated in
                    Access-Control-Expose-Headers
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: Major
          Priority: P2
         Component: XML
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: florin.botis at gmail.com


Scenario:

1. Make a XHR request to a CORS URL.
2. In the CORS preflight response (and all other server responses) the server includes next header

   Access-Control-Expose-Headers: Location

3. Make the actual CORS call
4. Server responds with HTTP status 201 and includes "Location" header in its response. The "Location" header can be seen using a HTTP packets sniffer.
5. jQuery's xhr.getResponseHeader("Location") returns null even if the Location header is present in the response and it was included in "Access-Control-Expose-Headers"

I can reproduce the issue on Safari. It was found on Windows XP, Safari 5.1.7

On Windows XP, Chrome 23.0.1271 the bug isn't reproducing

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