CONSOLE MESSAGE: line 1: XMLHttpRequest cannot load xmlhttprequest-no-file-access-expected.txt. Cross origin requests are only supported for HTTP. CONSOLE MESSAGE: line 1: Unsafe JavaScript attempt to access frame with URL xmlhttprequest-no-file-access-real.html. Domains, protocols and ports must match. The child iframe cannot paste its textual results into this iframe because it is considered a different domain - that's the point of this test! Therefore, success is denoted by the child iframe calling notifyDone. The test will hang if something goes amiss with the access control checks.