<!DOCTYPE html> <html> <head> <link rel="help" href="https://xhr.spec.whatwg.org/#the-responsetype-attribute" data-tested-assertations="following::ol[1]/li[4]" /> <link rel="help" href="https://xhr.spec.whatwg.org/#the-response-attribute" data-tested-assertations="following::a[contains(@href,'#arraybuffer-response-entity-body')]/.." /> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <title>XMLHttpRequest: The response attribute: ArrayBuffer data</title> </head> <body> <div id="log"></div> <script type="text/javascript"> var test = async_test(); test.step(function() { var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() { if (xhr.readyState == 4) { test.step(function() { assert_equals(xhr.status, 200); var buf = xhr.response; assert_true(buf instanceof ArrayBuffer); var arr = new Uint8Array(buf); assert_equals(arr.length, 5); assert_equals(arr[0], 0x48, "Expect 'H'"); assert_equals(arr[1], 0x65, "Expect 'e'"); assert_equals(arr[2], 0x6c, "Expect 'l'"); assert_equals(arr[3], 0x6c, "Expect 'l'"); assert_equals(arr[4], 0x6f, "Expect 'o'"); assert_equals(xhr.response, xhr.response, "Response should be cached"); test.done(); }); } }; xhr.open("GET", "./resources/content.py?content=Hello", true); xhr.responseType = "arraybuffer"; xhr.send(); }); </script> </body> </html>