[Webkit-unassigned] [Bug 137647] New: Fetching Blob URLs with XHR gives null content-type and content-length

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=137647

           Summary: Fetching Blob URLs with XHR gives null content-type
                    and content-length
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://bl.ocks.org/nolanlawson/0eac306e4dac2114c752
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: nolan at nolanlawson.com


Created an attachment (id=239703)
 --> (https://bugs.webkit.org/attachment.cgi?id=239703&action=review)
Test case in pure HTML

1. Create a Blob
2. Create an object URL for the blob
3. Fetch with XHR

Expected:

content-type and content-length should match the blob's type and size.

Actual:

Safari gives null for both.

Details:

I've provided a live test and also attached it.

Notice that in Firefox and Chrome, the correct content-type and content-length are given, whereas in Safari it's given as null and null.

Tested in Safari 7.1 (9537.85.10.17.1).

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