我试图使用http将值传递给离子服务器但我收到错误

Question

请参阅我试图将其发送到服务器的下面的示例代码

  var serializedData = $.param({
                    api: key,
                    user: $scope.user.username

                }); 

$ HTTP（{                         方法：＆＃39; POST＆＃39;，                         url：URL +＆＃34; login_master / login＆＃34;，                         data：serializedData，                         标题：{                         ＆＃39;内容类型＆＃39;：＆＃39; application / x-www-form-urlencoded＆＃39;                     }}）...