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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Bug 1280692 - navigator.sendBeacon() should send origin header</title>
+ <!-- Including SimpleTest.js so we can use waitForExplicitFinish !-->
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+ <p id="display"></p>
+ <div id="content" style="visibility: hidden">
+ <iframe style="width:100%;" id="testframe"></iframe>
+ </div>
+
+<script class="testbody" type="text/javascript">
+
+SimpleTest.waitForExplicitFinish();
+
+const BEACON_URL = "http://example.com/tests/dom/tests/mochitest/beacon/beacon-originheader-handler.sjs";
+// server returns any origin-header or 'no-header' if there is no header sent.
+const ORIGIN_HEADER = "http://mochi.test:8888";
+
+/* Description of the test:
+ * We call sendBeacon() cross origin and make sure that the
+ * origin header is actually set in the request.
+ *
+ * Since sendBeacon() does not expect any response, we are storing any
+ * header on the server (*.sjs) and use an XMLHttpRequest to actually
+ * retrieve the potentially set header back from the server. We assert
+ * that the header is indeed *not* sent with the request. Since sendBeacon()
+ * and also the XMLHttpRequest() are performed in an asynchronous fashion,
+ * there is no guarantee that the sendBeacon() is actually executed before
+ * the XMLHttpRequest().
+ * Hence the xhr-response might be processed asynchronously.
+ */
+
+SpecialPowers.pushPrefEnv({'set': [["beacon.enabled", true]]}, runTest);
+
+function queryHeaderFromServer() {
+ var xhr = new XMLHttpRequest();
+ xhr.open("GET", "beacon-originheader-handler.sjs?queryheader", true);
+ xhr.onload = function() {
+ is(xhr.responseText, ORIGIN_HEADER, "SendBeacon should send origin header");
+ SimpleTest.finish();
+ };
+ xhr.onerror = function() {
+ ok(false, "xhr request returned error");
+ SimpleTest.finish();
+ };
+ xhr.send();
+}
+
+function runTest() {
+ // generate data and send beacon
+ var formData = new FormData();
+ formData.append('name', 'value');
+ navigator.sendBeacon(BEACON_URL, formData);
+
+ // start quering the result from the server
+ queryHeaderFromServer();
+}
+
+</script>
+</pre>
+</body>
+</html>