[Webkit-unassigned] [Bug 111255] New: FormData.append should prefer application-specified filename to filename in a File

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=111255

           Summary: FormData.append should prefer application-specified
                    filename to filename in a File
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: http://jsbin.com/irefov/1/edit
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: costan at gmail.com


Description snippet from Chrome's bug http://crbug.com/165095

What steps will reproduce the problem?
1. Load the following JSbin -- http://jsbin.com/irefov/1/edit
2. Open the Developer Tools.
3. Click the 'Choose file' button in the <input type="file">, select a (preferably small text) file.
4. Click the XHR to zn-testbed.herokuapp.com' in the Network pane. Click the 'Request' tab, and look at the 'Request payload'
5. Look at the name after "filename=" in the form data.

What is the expected result?
The file name should be "file.name.from.js", as supplied in JavaScript.

What happens instead?
The file name is the name of the file selected in the <input type="file"> UI.

Step 6 in the FormData.append algorithm in the spec says that the 3rd argument should be used as the file name, when given.
http://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html#dom-formdata-append

I have a failing test for this bug and I'm working on a patch. I will attach the patch as soon as I get it working, hopefully today.

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