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+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Media test: seek tests</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <script type="text/javascript" src="manifest.js"></script>
+  <script type="text/javascript" src="seek_support.js"></script>
+</head>
+<body>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+// The data being used in these tests is specified in manifest.js.
+// The functions to build the test array and to run a specific test are in
+//      seek_support.js.
+
+PARALLEL_TESTS = 1;
+const SEEK_TEST_NUMBER = 11;
+
+function test_seek11(v, seekTime, is, ok, finish) {
+
+// Test for bug 476973, multiple seeks to the same position shouldn't cause problems.
+
+var seekedNonZero = false;
+var completed = false;
+var target = 0;
+
+function startTest() {
+  if (completed)
+    return;
+  target = v.duration / 2;
+  v.currentTime = target;
+  v.currentTime = target;
+  v._seekTarget = target;
+}
+
+function startSeeking() {
+  ok(v.currentTime >= v._seekTarget - 0.1,
+     "Video currentTime should be around " + v._seekTarget + ": " + v.currentTime);
+  if (!seekedNonZero) {
+    v.currentTime = target;
+    v._seekTarget = target;
+    seekedNonZero = true;
+  }
+}
+
+function seekEnded() {
+  if (completed)
+    return;
+
+  if (v.currentTime > 0) {
+    ok(v.currentTime > target - 0.1 && v.currentTime < target + 0.1,
+       "Seek to wrong destination " + v.currentTime);
+    v.currentTime = 0.0;
+    v._seekTarget = 0.0;
+  } else {
+    ok(seekedNonZero, "Successfully seeked to nonzero");
+    ok(true, "Seek back to zero was successful");
+    completed = true;
+    finish();
+  }
+}
+
+v.addEventListener("loadedmetadata", startTest);
+v.addEventListener("seeking", startSeeking);
+v.addEventListener("seeked", seekEnded);
+
+}
+
+manager.runTests(createTestArray(), startTest);
+
+</script>
+</pre>
+</body>
+</html>