download fabric canvas to url with name

gistfile1.txt

http://stackoverflow.com/questions/20032214/recreate-fabric-js-canvas-and-export-as-an-image

function download(url,name){
// make the link. set the href and download. emulate dom click
  $('<a>').attr({href:url,download:name})[0].click();
}
function downloadFabric(canvas,name){
//  convert the canvas to a data url and download it.
  download(canvas.toDataURL(),name+'.png');
}
//now when you want to download the canvas call

downloadFabric(canvas,'<file name>');