file_clonewrapper.html

Enable keyboard shortcuts

<!doctype html>

<html>

<head>

<script type="application/javascript">

  function waitForMessage() {

    return new Promise(function(resolve) {

      window.addEventListener('message', function(evt) {

        resolve(evt.data);

      }, {once: true});

});

  // Set up the objects for cloning.

  function setup() {

    window.testObject = { myNumber: 42,

                          myString: "hello",

                          myImageData: new ImageData(10, 10) };

  // Called by the chrome parent window.

  function tryToClone(obj, shouldSucceed, message) {

    var success = false;

    try { window.postMessage(obj, '*'); success = true; }

    catch (e) { message = message + ' (threw: ' + e.message + ')'; }

    is(success, shouldSucceed, message);

    return (success && shouldSucceed) ? waitForMessage() : Promise.resolve();

</script>

</head>

<body onload="setup()">

<input id="fileinput" type="file"></input>

</body>

</html>