javascript - Angularjs http post won't send data if all form fields are populated -

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i using anglarjs. have select tag on form. on change call function sends http post , retrieves data. works when before everthing select value select box,then gets data. if populate 1 other field , change dropdown list value,it won't send http post. don't understand problem.

here part of form:

                .                 .                 .  <div class="form-group" >                     <label>num<span class="error">*</span></label><span data-ng-show="user.userform1.num.$touched && user.userform1.num.$invalid "  class="error">required</span>                     <input  type="text" class="form-control" name="num" data-ng-model="user.num" required   data-ng-pattern="/^[0-9]{13,13}$/" data-ng-value="num"/>                 </div>     <div class="form-group" >                     <label class="control-label">city<span class="error">*</span></label><span data-ng-show="user.userform1.selectedcity.$touched && user.userform1.selectedcity.$invalid" class="error">required</span>                                                     <select  ng-change="sendselection()"  data-ng-model="user.selectedcity" class="form-control" name="selectedcity" required data-ng-value="user.selectedcity" >                             <option value="">chose city</option>                             <option >city1</option>                              <option >city2</option>                              <option >city3</option>                              <option >city4</option>                            </select>      </div>                    .                   .                   .

here mu function inside controller:

$scope.sendselection = function() {          $http({             method: 'post',             url: 'add.php',             withcredentials: true,             data: "selection="+$scope.user.selectedcity,             datatype: "json",             headers: {'content-type': 'application/x-www-form-urlencoded'}         })         .success(function(data) {             alert(data);         })         .error(function(err) {             alert(data);         });          }

it works on localhost when put on real server has problem mentioned above.


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