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diff --git a/dom/indexedDB/test/test_filehandle_stream_tracking.html b/dom/indexedDB/test/test_filehandle_stream_tracking.html
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+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html>
+<head>
+  <title>File Handle Test</title>
+
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+
+  <script type="text/javascript;version=1.7">
+  function testSteps()
+  {
+    const name = window.location.pathname;
+
+    var testBuffer = getRandomBuffer(100000);
+
+    let request = indexedDB.open(name, 1);
+    request.onerror = errorHandler;
+    request.onsuccess = grabEventAndContinueHandler;
+    let event = yield undefined;
+
+    let db = event.target.result;
+    db.onerror = errorHandler;
+
+    request = db.createMutableFile("test.txt");
+    request.onerror = errorHandler;
+    request.onsuccess = grabEventAndContinueHandler;
+    event = yield undefined;
+
+    let mutableFile = event.target.result;
+    mutableFile.onerror = errorHandler;
+
+    let fileHandle = mutableFile.open("readwrite");
+
+    request = fileHandle.write(testBuffer);
+    request.onsuccess = grabEventAndContinueHandler;
+    event = yield undefined;
+
+    request = mutableFile.getFile();
+    request.onsuccess = grabEventAndContinueHandler;
+    event = yield undefined;
+
+    let file = event.target.result;
+
+    let resultBuffer1;
+    let resultBuffer2;
+
+    let reader1 = new FileReader();
+    reader1.readAsArrayBuffer(file);
+    reader1.onerror = errorHandler;
+    reader1.onload = function(event)
+    {
+      resultBuffer1 = event.target.result;
+
+      let reader = new FileReader();
+      try {
+        reader.readAsArrayBuffer(file);
+        ok(false, "Should have thrown!");
+      }
+      catch (e) {
+        ok(e instanceof DOMException, "Got exception.");
+        is(e.name, "FileHandleInactiveError", "Good error.");
+        is(e.code, 0, "Good error code.");
+      }
+
+      if (resultBuffer2) {
+        testGenerator.next();
+      }
+    }
+
+    let reader2 = new FileReader();
+    reader2.readAsArrayBuffer(file);
+    reader2.onerror = errorHandler;
+    reader2.onload = function(event)
+    {
+      resultBuffer2 = event.target.result;
+
+      let reader = new FileReader();
+      try {
+        reader.readAsArrayBuffer(file);
+        ok(false, "Should have thrown!");
+      }
+      catch (e) {
+        ok(e instanceof DOMException, "Got exception.");
+        is(e.name, "FileHandleInactiveError", "Good error.");
+        is(e.code, 0, "Good error code.");
+      }
+
+      if (resultBuffer1) {
+        testGenerator.next();
+      }
+    }
+
+    yield undefined;
+
+    ok(compareBuffers(resultBuffer1, testBuffer), "Correct data");
+    ok(compareBuffers(resultBuffer2, testBuffer), "Correct data");
+
+    finishTest();
+    yield undefined;
+  }
+  </script>
+  <script type="text/javascript;version=1.7" src="file.js"></script>
+  <script type="text/javascript;version=1.7" src="helpers.js"></script>
+
+</head>
+
+<body onload="runTest();"></body>
+
+</html>