test_bug519928.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=519928

-->

<head>

  <title>Test for Bug 519928</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=519928">Mozilla Bug 519928</a>

<p id="display"></p>

<div id="content">

<iframe id="load-frame"></iframe>

</div>

<pre id="test">

<script class="testbody" type="text/javascript">

var iframe = document.getElementById("load-frame");

function enableJS() { allowJS(true, iframe); }

function disableJS() { allowJS(false, iframe); }

function allowJS(allow, frame) {

  SpecialPowers.wrap(frame.contentWindow).windowGlobalChild.windowContext.allowJavascript = allow;

async function expectJSAllowed(allowed, testCondition) {

  window.ICanRunMyJS = false;

  const self_ = window;

  testCondition();

  const doc = iframe.contentDocument;

  const innerFrame = doc.createElement("iframe");

  // eslint-disable-next-line no-useless-concat

  innerFrame.srcdoc = "<script>parent.parent.ICanRunMyJS = true;</scr" + "ipt>";

  const loaded = new Promise(resolve => innerFrame.onload = resolve);

  doc.body.append(innerFrame);

  await loaded;

  is(self_.ICanRunMyJS, allowed, "The inner iframe should" + (allowed ? "" : " not") + " be able to run Javascript");

  innerFrame.remove();

async function testDocumentDisabledJS() {

  window.ICanRunMyJS = false;

  const self_ = window;

  // Ensure design modes are disabled

  document.designMode = "off";

  iframe.contentDocument.designMode = "off";

  // Javascript enabled on the main iframe

  enableJS();

  const doc = iframe.contentDocument;

  const innerFrame = doc.createElement("iframe");

  // eslint-disable-next-line no-useless-concat

  innerFrame.srcdoc = "<script>parent.parent.ICanRunMyJS = true;</scr" + "ipt>";

  const loaded = new Promise(resolve => innerFrame.onload = resolve);

  doc.body.append(innerFrame);

  // Javascript disabled on the innerFrame.

  allowJS(false, innerFrame);

  await loaded;

  is(self_.ICanRunMyJS, false, "The inner iframe should not be able to run Javascript");

  innerFrame.remove();

SimpleTest.waitForExplicitFinish();

addLoadEvent(async function() {

  var enterDesignMode = function() { document.designMode = "on"; };

  var leaveDesignMode = function() { document.designMode = "off"; };

  await expectJSAllowed(false, disableJS);

  await expectJSAllowed(true, enableJS);

  await expectJSAllowed(true, enterDesignMode);

  await expectJSAllowed(true, leaveDesignMode);

  await expectJSAllowed(false, disableJS);

  await expectJSAllowed(false, enterDesignMode);

  await expectJSAllowed(false, leaveDesignMode);

  await expectJSAllowed(true, enableJS);

  enterDesignMode = function() { iframe.contentDocument.designMode = "on"; };

  leaveDesignMode = function() { iframe.contentDocument.designMode = "off"; };

  await expectJSAllowed(false, disableJS);

  await expectJSAllowed(true, enableJS);

  await expectJSAllowed(true, enterDesignMode);

  await expectJSAllowed(true, leaveDesignMode);

  await expectJSAllowed(false, disableJS);

  await expectJSAllowed(false, enterDesignMode);

  await expectJSAllowed(false, leaveDesignMode);

  await expectJSAllowed(true, enableJS);

  await testDocumentDisabledJS();

  SimpleTest.finish();

});

</script>

</pre>

</body>

</html>