1 Test for ArrayBuffer POST in XMLHttpRequest send
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 xhr.readyState = 4: responseURL = http://127.0.0.1:8000/xmlhttprequest/resources/post-echo-as-ascii.cgi
8 PASS responseText is "0 1 2 25 45 58 255"
9 PASS successfullyParsed is true