(function(w){if(w.FormData)return;function FormData(){this.fake=true;this.boundary="--------FormData"+Math.random();this._fields=[]}FormData.prototype.append=function(key,value){this._fields.push([key,value])}FormData.prototype.toString=function(){var boundary=this.boundary;var body="";this._fields.forEach(function(field){body+="--"+boundary+"\r\n";if(field[1].name){var file=field[1];body+="Content-Disposition: form-data; name=\""+field[0]+"\"; filename=\""+file.name+"\"\r\n";body+="Content-Type: "+file.type+"\r\n\r\n";body+=file.getAsBinary()+"\r\n"}else{body+="Content-Disposition: form-data; name=\""+field[0]+"\";\r\n\r\n";body+=field[1]+"\r\n"}});body+="--"+boundary+"--";return body}w.FormData=FormData})(window);