Fix location form submission bug on enter

src/views/app.html

@@ -302,6 +302,9 @@
                   <br>
                 </p>
 
+                <!-- hidden submit has to be prior to other button elements, otherwise firefox will treat them as the "enter" key action, in this case the alternate domain delete button! -->
+                <input class="ng-hide" type="submit" ng-disabled="locationForm.$invalid || location.busy"/>
+
                 <div class="has-error text-center" ng-show="location.error.port">{{ location.error.port }}</div>
                 <div ng-repeat="(env, info) in location.portBindingsInfo">
                   <ng-form name="portInfo_form">
@@ -350,8 +353,6 @@
                     <a href="" ng-click="location.addAlternateDomain($event)">Add another domain</a>
                   </div>
                 </div>
-
-                <input class="ng-hide" type="submit" ng-disabled="locationForm.$invalid || location.busy"/>
               </form>
             </fieldset>
           </div>