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+<!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>