|  | <!DOCTYPE html> | 
|  | <html> | 
|  | <head> | 
|  | <link rel="help" href="https://xhr.spec.whatwg.org/#the-send()-method" /> | 
|  | <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,'#blob-response-entity-body')]/.." /> | 
|  | <script src="/resources/testharness.js"></script> | 
|  | <script src="/resources/testharnessreport.js"></script> | 
|  | <title>XMLHttpRequest: The response attribute: Blob data</title> | 
|  | </head> | 
|  |  | 
|  | <body> | 
|  | <div id="log"></div> | 
|  |  | 
|  | <script type="text/javascript"> | 
|  | var test = async_test(); | 
|  |  | 
|  | test.step(function() | 
|  | { | 
|  | var xhr = new XMLHttpRequest(); | 
|  | var content = "Hello"; | 
|  | var blob; | 
|  |  | 
|  | xhr.onreadystatechange = function() | 
|  | { | 
|  | if (xhr.readyState == 4) | 
|  | { | 
|  | test.step(function() | 
|  | { | 
|  | blob = xhr.response; | 
|  | assert_equals(xhr.response, xhr.response, | 
|  | "Response should be cached"); | 
|  | assert_true(blob instanceof Blob, 'blob is a Blob'); | 
|  |  | 
|  | var reader = new FileReader(); | 
|  | reader.onload = function() | 
|  | { | 
|  | test.step(function() | 
|  | { | 
|  | assert_equals(reader.result, content); | 
|  | test.done(); | 
|  | }); | 
|  | }; | 
|  | reader.readAsText(blob); | 
|  | }); | 
|  | } | 
|  | } | 
|  |  | 
|  | xhr.open("GET", "./resources/content.py?content=" + content, true); | 
|  | xhr.responseType = "blob"; | 
|  | xhr.send(); | 
|  | }); | 
|  | </script> | 
|  | </body> | 
|  | </html> |