sandbox-new-execution-context.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /html/browsers/sandboxing/sandbox-new-execution-context.html - WPT Dashboard Interop Dashboard

<!doctype html>

<html>

  <head>

    <title>Reuse of iframe about:blank document execution context</title>

    <link rel="author" title="Dan Clark" href="mailto:daniec@microsoft.com">

    <link rel="help" href="http://www.w3.org/html/wg/drafts/html/master/browsers.html#sandboxing">

    <script src="/resources/testharness.js"></script>

    <script src="/resources/testharnessreport.js"></script>

  </head>

  <body>

    <h1>Reuse of iframe about:blank document execution context in sandbox="allow-scripts" iframe</h1>

    <script type="text/javascript">

      async_test(t => {

        let iframe = document.createElement("iframe");

        document.body.appendChild(iframe);

        let iframeAboutBlankDocument = iframe.contentDocument;

        assert_equals(iframeAboutBlankDocument.URL, "about:blank");

        iframe.sandbox = "allow-scripts";

        iframe.src = './sandbox-new-execution-context-iframe.html';

        iframe.onload = t.step_func_done(() => {

          assert_equals(iframe.contentDocument, null,

            "New document in sandboxed iframe should have opaque origin");

          assert_equals(Object.getPrototypeOf(iframeAboutBlankDocument).changeFromSandboxedIframe, undefined,

            "Sandboxed iframe contents should not have been able to mess with type system of about:blank document");

          let iframeAboutBlankContents = iframeAboutBlankDocument.querySelectorAll('body');

          assert_equals(iframeAboutBlankContents[0].tagName, "BODY",

            "about:blank document's contents should still be accessible");

});

      },"iframe with sandbox should load with new execution context");

    </script>

    <div id="log"></div>

  </body>

</html>