I\'m using html2canvas to save my online map as an image (See the Save as Image link). I\'ve tried it in Firefox, Chrome and Opera.
It tends to work more often if
In my case i just allowed Cross Origin Resource Sharing (CORS) in the html2Canvas configuration and it worked for me.
useCORS:true,
For more info you can refer to the html2Canvas Documentation: http://html2canvas.hertzen.com/configuration