028.html (622B)
1 <!doctype html> 2 <title>Cloning objects, preserving sharing #2</title> 3 <script src="/resources/testharness.js"></script> 4 <script src="/resources/testharnessreport.js"></script> 5 <canvas id="a" width=30 height=30></canvas> 6 <div id=log></div> 7 <script> 8 async_test(function() { 9 var canvas = document.getElementsByTagName("canvas")[0]; 10 var context = canvas.getContext("2d"); 11 var img_data = context.getImageData(0, 0, 30, 30); 12 var obj = {a: img_data, b: {c: img_data, d: 3}}; 13 postMessage(obj, '*'); 14 onmessage = this.step_func(function(e) { 15 assert_equals(e.data.a, e.data.b.c); 16 this.done(); 17 }); 18 }); 19 </script>