dom/base/test/test_structuredclone_backref.html

   1 <!DOCTYPE HTML>
   2 <script src="/tests/SimpleTest/SimpleTest.js"></script>
   3 <link rel="stylesheet" href="/tests/SimpleTest/test.css">
   4 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1538622">Mozilla Bug 1538622</a>
   5
   6 <script>
   7   SimpleTest.waitForExplicitFinish();
   8
   9   let o1 = new ImageData(25, 1),
  10       o2 = new ImageData(50, 1),
  11       o3 = new ImageData(75, 1),
  12       o4 = new ImageData(100, 1);
  13
  14   let data = {
  15     img1: o1,
  16     img2: o2,
  17     img3: o3,
  18     img4: o4,
  19     img5: o4,
  20   };
  21
  22   window.addEventListener("message", windowMessage);
  23
  24   window.postMessage(data);
  25
  26   function windowMessage(e) {
  27     let dataCopied = e.data;
  28     ok(dataCopied.img5 instanceof ImageData, "backref ImageData should still be an ImageData");
  29     is(dataCopied.img5, dataCopied.img4, "backref ImageData should be the referenced one");
  30     SimpleTest.finish();
  31   }
  32 </script>