CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/. Test for bug 33057: typeof(xhr.responseText) != "string" on Windows. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS typeof(r.responseText) == "string" is true PASS typeof(r.responseText) === "string" is true PASS typeof(r.responseText) != "string" is false PASS typeof(r.responseText) !== "string" is false PASS "" + typeof(r.responseText) is "string" PASS typeof(r.responseText) + "" is "string" PASS String(typeof(r.responseText)) is "string" PASS String(typeof(r.responseText)) is typeof(r.responseText) PASS successfullyParsed is true TEST COMPLETE