XHR CORS on 302 Redirect sets Origin to "null" in request

Number:rdar://12466595 Date Originated:09-Oct-2012 06:05 PM
Status:Open Resolved:
Product:Safari Product Version:6.0.1 (8536.26.14)
Classification:Serious Bug Reproducible:Always
09-Oct-2012 06:05 PM Terin Stock:
A XHR CORS request that includes a 302 redirect sets the Origin property to "null" in the redirected request.

Steps to Reproduce:
0. Be on one domain (host: http://example.test)
1. Initiate a XHR CORS request to a resource. (host: http://test1.example.org)
2. The resource issues a 302 redirect to another resource on another domain (host: http://test2.example.org)

Expected Results:
The second request (to test2.example.org) would have set the Origin to "example.test" in the request

Actual Results:
During the second request the Origin is set to "null"

Firefox 15.x: OK
IE 8: OK
Chrome: 24.0.1284.2 dev

X-Post: https://bugs.webkit.org/show_bug.cgi?id=98838


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at bugreport.apple.com before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!