Tue, 06 Jan 2015 21:39:09 +0100
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 <!DOCTYPE html>
2 <html>
3 <head>
4 <canvas id="canvas" width="100" height="100"></canvas>
6 <script>
8 var canvas = document.getElementById('canvas');
9 var ctx = canvas.getContext('2d');
11 ctx.fillStyle = '#0f0';
12 ctx.fillRect(0, 0, 100, 100);
14 ctx.beginPath();
15 ctx.rect(30, 30, 40, 40);
16 ctx.clip();
18 ctx.beginPath();
19 ctx.arc(50, 50, 25, 0, 2 * Math.PI);
20 ctx.clip();
22 ctx.fillStyle = '#f00';
24 ctx.fillRect(0, 0, 100, 100);
26 </script>
27 </body></html>