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 |   1 <!DOCTYPE HTML> | 
 |   2 <html> | 
 |   3 <head> | 
 |   4   <title>Media documents: video</title> | 
 |   5   <link rel="author" title="Michael Ventnor" href="mailto:mventnor@mozilla.com"> | 
 |   6   <link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com"> | 
 |   7   <link rel="help" href="https://html.spec.whatwg.org/multipage/#read-media"> | 
 |   8   <script src="../../../../../../resources/testharness.js"></script> | 
 |   9   <script src="../../../../../../resources/testharnessreport.js"></script> | 
 |  10  | 
 |  11 <script> | 
 |  12   var t = async_test("The document for a standalone media file should have one c
    hild in the body."); | 
 |  13  | 
 |  14   function frameLoaded() { | 
 |  15     var testframe = document.getElementById('testframe'); | 
 |  16     var testframeChildren = testframe.contentDocument.body.childNodes; | 
 |  17     assert_equals(testframeChildren.length, 1, "Body of image document has 1 chi
    ld"); | 
 |  18     assert_equals(testframeChildren[0].nodeName, "VIDEO", "Only child of body mu
    st be an <video> element"); | 
 |  19     assert_equals(testframeChildren[0].namespaceURI, "http://www.w3.org/1999/xht
    ml", | 
 |  20                   "Only child of body must be an HTML element"); | 
 |  21     t.done(); | 
 |  22   } | 
 |  23 </script> | 
 |  24 </head> | 
 |  25 <body> | 
 |  26   <div id="log"></div> | 
 |  27   <iframe id="testframe" onload="t.step(frameLoaded)" | 
 |  28    src="data:video/webm,"></iframe> | 
 |  29 </body> | 
 |  30 </html> | 
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