If a 307 Temporary Redirect is received in response to a POST, the browser should attempt to repeat the POST at the new temporary location. The user should be notified and allowed to abort this redirect.
Currently a 307 is being treated like a 302 or 303 where it changes the method of the original request and uses a GET on the new temporary location.
This is status code is handled by other modern browsers.
*** This bug has been marked as a duplicate of 11118 ***