title: Submit form with dynamically changing action attribute
body: <p>I'm trying to send form with dynamically changing action url, but right after changing attribute the form doesn't submits.</p>
  
  <p>Here is simple example:
  <a href="http://jsfiddle.net/THZHL/1/" rel="nofollow">http://jsfiddle.net/THZHL/1/</a></p>
  
  <pre><code>&lt;div ng-app="app"&gt;
      &lt;form name="b" action="{{url}}" methood="post" ng-controller="formCtrl"&gt;
          &lt;button type="button" ng-click="set()"&gt;1. set url&lt;/button&gt;
          &lt;button type="submit"&gt;2. Send&lt;/button&gt;
          {{url}}
      &lt;/form&gt;
  &lt;/div&gt;
  &lt;script&gt;
      app = angular.module("app", []);
  
      app.controller("formCtrl", function($scope){
          $scope.set = function(){
              $scope.url = "/abc";
          }
      });
  &lt;/script&gt;
  </code></pre>
  
  <p>I don't understand why it happens in that way.</p>