360293-1.html (689B)
1 <html> 2 3 4 <body> 5 Firefox: <a href="javascript:noCrash()">no crash</a> | <a href="javascript:crash()">crash</a><br/> 6 <canvas id="foo" width="200" height="200"> 7 </canvas> 8 <script> 9 function d(lineWidth){ 10 var c = document.getElementById("foo").getContext("2d") 11 c.clearRect(0,0,200,200) 12 c.lineWidth = lineWidth 13 c.beginPath() 14 c.arc(100,100,80, Math.PI, 2*Math.PI, 1) 15 c.stroke() 16 c.beginPath() 17 c.arc(50,50, 20, 0, 2*Math.PI, 1) 18 c.stroke() 19 c.beginPath() 20 c.arc(150,50, 20, 0, 2*Math.PI, 1) 21 c.stroke() 22 } 23 function noCrash() { 24 d(Math.random()*20+5) 25 } 26 function crash() { 27 d( '_' ) 28 } 29 30 crash(); 31 </script> 32 33 </body> 34 35 </html>