028.html - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /webmessaging/without-ports/028.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>Cloning objects, preserving sharing #2</title>

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

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

<canvas id="a" width=30 height=30></canvas>

<div id=log></div>

<script>

async_test(function() {

  var canvas = document.getElementsByTagName("canvas")[0];

  var context = canvas.getContext("2d");

  var img_data = context.getImageData(0, 0, 30, 30);

  var obj = {a: img_data, b: {c: img_data, d: 3}};

  postMessage(obj, '*');

  onmessage = this.step_func(function(e) {

    assert_equals(e.data.a, e.data.b.c);

    this.done();

});

});

</script>