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diff --git a/dom/security/test/csp/test_meta_element.html b/dom/security/test/csp/test_meta_element.html
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+++ b/dom/security/test/csp/test_meta_element.html
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+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Bug 663570 - Implement Content Security Policy via <meta> tag</title>
+  <!-- Including SimpleTest.js so we can use waitForExplicitFinish !-->
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<iframe style="width:100%;" id="testframe" src="file_meta_element.html"></iframe>
+
+<script class="testbody" type="text/javascript">
+
+/* Description of the test:
+ * The test is twofold:
+ * First, by loading a page using meta csp (into an iframe) we make sure that
+ * images get correctly blocked as the csp policy includes "img-src 'none'";
+ *
+ * Second, we make sure meta csp ignores the following directives:
+ *   * report-uri
+ *   * frame-ancestors
+ *   * sandbox
+ *
+ * Please note that the CSP sanbdox directive (bug 671389) has not landed yet.
+ * Once bug 671389 lands this test will fail and needs to be updated.
+ */
+
+SimpleTest.waitForExplicitFinish();
+const EXPECTED_DIRS = ["img-src", "script-src"];
+
+function finishTest() {
+  window.removeEventListener("message", receiveMessage, false);
+  SimpleTest.finish();
+}
+
+function checkResults(result) {
+  is(result, "img-blocked", "loading images should be blocked by meta csp");
+
+  try {
+    // get the csp in JSON notation from the principal
+    var frame = document.getElementById("testframe");
+    var principal = SpecialPowers.wrap(frame.contentDocument).nodePrincipal;
+    var cspJSON = principal.cspJSON;
+    ok(cspJSON, "CSP applied through meta element");
+
+    // parse the cspJSON in a csp-object
+    var cspOBJ = JSON.parse(cspJSON);
+    ok(cspOBJ, "was able to parse the JSON");
+
+    // make sure we only got one policy
+    var policies = cspOBJ["csp-policies"];
+    is(policies.length, 1, "there should be one policy applied");
+
+    // iterate the policy and make sure to only encounter
+    // expected directives.
+    var policy = policies[0];
+    for (var dir in policy) {
+      // special case handling for report-only which is not a directive
+      // but present in the JSON notation of the CSP.
+      if (dir === "report-only") {
+        continue;
+      }
+      var index = EXPECTED_DIRS.indexOf(dir);
+      isnot(index, -1, "meta csp contains directive: " + dir + "!");
+
+      // take the element out of the array so we can make sure
+      // that we have seen all the expected values in the end.
+      EXPECTED_DIRS.splice(index, 1);
+    }
+    is(EXPECTED_DIRS.length, 0, "have seen all the expected values");
+  }
+  catch (e) {
+    ok(false, "uuh, something went wrong within meta csp test");
+  }
+
+  finishTest();
+}
+
+// a postMessage handler used to bubble up the onsuccess/onerror state
+// from within the iframe.
+window.addEventListener("message", receiveMessage, false);
+function receiveMessage(event) {
+  checkResults(event.data.result);
+}
+
+</script>
+</body>
+</html>