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diff --git a/dom/file/tests/test_mozfiledataurl.html b/dom/file/tests/test_mozfiledataurl.html
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+++ b/dom/file/tests/test_mozfiledataurl.html
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+<!DOCTYPE HTML>
+<html>
+<head>
+  <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
+  <title>Test for File urls</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body onload="start()">
+<p id="display">
+<iframe id=inner></iframe>
+<iframe id=iframe></iframe>
+<img id=img onload="gen.next(event);">
+<audio id=audio onloadeddata="gen.next(event);">
+</p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script class="testbody" type="application/javascript">
+
+try {
+  URL.createObjectURL(undefined);
+} catch(e) { }
+
+window.addEventListener("message", function(e) {
+  gen.next(JSON.parse(e.data));
+});
+
+const innerSameSiteURI = "file_mozfiledataurl_inner.html";
+const innerCrossSiteURI = "http://example.com/tests/dom/file/tests/file_mozfiledataurl_inner.html"
+
+var fileNames = ["file_mozfiledataurl_img.jpg",
+                 "file_mozfiledataurl_audio.ogg",
+                 "file_mozfiledataurl_doc.html",
+                 "file_mozfiledataurl_text.txt"];
+
+function start() {
+  let xhr = new XMLHttpRequest;
+  xhr.open("GET", "/dynamic/getMyDirectory.sjs", false);
+  xhr.send();
+  let basePath = xhr.responseText;
+
+  let fullFileNames = [];
+  for (let name of fileNames) {
+    fullFileNames.push(basePath + name);
+  }
+
+  var script = SpecialPowers.loadChromeScript(SimpleTest.getTestFileURL("create_file_objects.js"));
+
+  script.addMessageListener("created-file-objects", function handler(files) {
+    script.removeMessageListener("created-file-objects", handler);
+    gen = runTest(files);
+    gen.next();
+  });
+
+  script.sendAsyncMessage("create-file-objects", {fileNames: fullFileNames});
+};
+
+SimpleTest.waitForExplicitFinish();
+SimpleTest.expectAssertions(0, 3);
+
+function* runTest([imgFile, audioFile, docFile, xhrFile]) {
+  inner = document.getElementById('inner');
+  img = document.getElementById('img');
+  audio = document.getElementById('audio');
+  iframe = document.getElementById('iframe');
+  inner.onload = function() { gen.next("inner loaded"); };
+
+  // Attempt to load a image in this document
+  var fileurl = URL.createObjectURL(imgFile);
+  img.src = fileurl;
+  var e = (yield);
+  is(e.type, "load", "loaded successfully");
+  is(img.width, 120, "correct width");
+  is(img.height, 90, "correct height");
+
+  // Revoke url and attempt to load a image in this document
+  img.src = "file_mozfiledataurl_img.jpg";
+  is((yield).type, "load", "successfull reset image");
+  URL.revokeObjectURL(fileurl);
+  todo(false, "urls need to act like 404s, not fail to parse");
+/*  img.src = fileurl;
+  var e = (yield);
+  is(e.type, "error", "failed successfully");
+  isnot(img.width, 120, "correct error width");
+  isnot(img.height, 90, "correct error height");
+*/
+  // Generate new fileurl and make sure it's different from the old
+  var oldFileurl = fileurl;
+  fileurl = URL.createObjectURL(imgFile);
+  isnot(fileurl, oldFileurl, "URL.createObjectURL generated the same url twice");
+
+  // Attempt to load an image in a different same-origin document
+  inner.src = innerSameSiteURI;
+  yield undefined;
+  inner.contentWindow.postMessage(JSON.stringify({img:fileurl}), "*");
+  var res = (yield);
+  is(res.type, "load", "loaded successfully");
+  is(res.width, 120, "correct width");
+  is(res.height, 90, "correct height");
+
+  // Attempt to load an image in a different cross-origin document
+  inner.src = innerCrossSiteURI;
+  yield undefined;
+  inner.contentWindow.postMessage(JSON.stringify({img:fileurl}), "*");
+  var res = (yield);
+  is(res.type, "error", "failed successfully");
+  isnot(res.width, 120, "correct error width");
+  isnot(res.height, 90, "correct error height");
+
+  // Attempt to load an audio in this document
+  fileurl = URL.createObjectURL(audioFile);
+  audio.src = fileurl;
+  var e = (yield);
+  is(e.type, "loadeddata", "loaded successfully");
+
+  // Revoke url and attempt to load a audio in this document
+  audio.src = "file_mozfiledataurl_audio.ogg";
+  is((yield).type, "loadeddata", "successfully reset audio");
+  URL.revokeObjectURL(fileurl);
+  todo(false, "urls need to act like 404s, not fail to parse");
+/*  img.src = fileurl;
+  var e = (yield);
+  is(e.type, "error", "failed successfully");
+  isnot(img.width, 120, "correct error width");
+  isnot(img.height, 90, "correct error height");
+*/
+  // Generate new fileurl and make sure it's different from the old
+  var oldFileurl = fileurl;
+  fileurl = URL.createObjectURL(audioFile);
+  isnot(fileurl, oldFileurl, "URL.createObjectURL generated the same url twice");
+
+  // Attempt to load an audio in a different same-origin document
+  inner.src = innerSameSiteURI;
+  yield undefined;
+  inner.contentWindow.postMessage(JSON.stringify({audio:fileurl}), "*");
+  var res = (yield);
+  is(res.type, "loadeddata", "loaded successfully");
+
+  // Attempt to load an audio in a different cross-origin document
+  inner.src = innerCrossSiteURI;
+  yield undefined;
+  inner.contentWindow.postMessage(JSON.stringify({audio:fileurl}), "*");
+  var res = (yield);
+  is(res.type, "error", "failed successfully");
+
+  // Attempt to load a HTML document in an iframe in this document
+  iframe.onload = function() { gen.next(); };
+  iframe.src = "file_mozfiledataurl_doc.html";
+  yield undefined;
+  is(iframe.contentDocument.getElementsByTagName("p")[0].textContent,
+     "This here is a document!",
+     "iframe loaded successfully");
+  is(iframe.contentDocument.getElementById("img").width, 120,
+     "image in iframe width");
+  is(iframe.contentDocument.getElementById("img").height, 90,
+     "image in iframe height");
+
+  // Attempt to load a HTML document in an iframe in this document, using file url
+  fileurl = URL.createObjectURL(docFile);
+  iframe.src = fileurl;
+  yield undefined;
+  is(iframe.contentDocument.getElementsByTagName("p")[0].textContent,
+     "This here is a document!",
+     "iframe loaded successfully");
+  isnot(iframe.contentDocument.getElementById("img").width, 120,
+        "failed image in iframe width");
+  isnot(iframe.contentDocument.getElementById("img").height, 90,
+        "failed image in iframe height");
+
+  // Attempt to load a HTML document in an iframe in inner document
+  inner.src = innerSameSiteURI;
+  is((yield), "inner loaded", "correct gen.next()");
+  inner.contentWindow.postMessage(JSON.stringify({iframe:"file_mozfiledataurl_doc.html"}), "*");
+  var res = (yield);
+  is(res.type, "load", "loaded successfully");
+  is(res.text, "This here is a document!", "loaded successfully");
+  is(res.imgWidth, 120, "correct width");
+
+  // Attempt to load a HTML document in an iframe in inner document, using file url
+  inner.contentWindow.postMessage(JSON.stringify({iframe:fileurl}), "*");
+  var res = (yield);
+  is(res.type, "load", "loaded successfully");
+  is(res.text, "This here is a document!", "loaded successfully");
+  isnot(res.imgWidth, 120, "correct width");
+
+  // Attempt to load a HTML document in an iframe in inner cross-site document, using file url
+  inner.src = innerCrossSiteURI;
+  is((yield), "inner loaded", "correct gen.next()");
+  inner.contentWindow.postMessage(JSON.stringify({iframe:fileurl}), "*");
+  var res = (yield);
+  is(res.type, "error", "load failed successfully");
+
+  // Attempt to load file url using XHR
+  fileurl = URL.createObjectURL(xhrFile);
+  xhr = new XMLHttpRequest;
+  xhr.onload = function() { gen.next("XHR finished"); };
+  xhr.open("GET", fileurl);
+  xhr.send();
+  is((yield), "XHR finished", "correct gen.next()");
+  xhr.responseText == "Yarr, here be plaintext file, ya landlubber\n";
+
+  // Attempt to load file url using XHR in inner document
+  inner.src = innerSameSiteURI;
+  is((yield), "inner loaded", "correct gen.next()");
+  inner.contentWindow.postMessage(JSON.stringify({xhr:fileurl}), "*");
+  var res = (yield);
+  is(res.didThrow, undefined, "load successful");
+  is(res.text, "Yarr, here be plaintext file, ya landlubber\n", "load successful");
+
+  // Attempt to load file url using XHR
+  inner.src = innerCrossSiteURI;
+  is((yield), "inner loaded", "correct gen.next()");
+  inner.contentWindow.postMessage(JSON.stringify({xhr:fileurl}), "*");
+  var res = (yield);
+  is(res.didError, true, "load failed successfully");
+
+  SimpleTest.finish();
+}
+</script>
+</pre>
+</body>
+</html>