1443671.html (216B)
1 <!DOCTYPE html> 2 <html> 3 <script> 4 try { o1 = document.createElement('canvas') } catch (e) {} 5 try { o2 = o1.transferControlToOffscreen() } catch (e) {} 6 try { o2.getContext("webgl", { }) } catch (e) {} 7 </script> 8 </html>