parseBlob:function(base64) { var arr = base64.split(','); var mime = arr[0].match(/:(.*?);/)[1]; var bstr = atob(arr[1]); var n = bstr.length; var u8arr = new Uint8Array(n); for(var i = 0; i < n; i++) { u8arr[i] = bstr.charCodeAt(i); } var url = URL || webkitURL; return url.createObjectURL(new Blob([u8arr], {type: mime})); },