title: Pass Parameters to hidden input fields in a iframe
body: <p>i have a iframe what i have included in a div.</p>
  
  <pre><code>&lt;iframe id="uploaderFrame" src="/de-de/[SVO]FileUploader.aspx?projectNo=15" width="250" height="100"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>In this iframe i now have hiden fields.</p>
  
  <pre><code>&lt;input type="hidden" ng-model="projectNo" name="projectNo" id="projectNo" value="{{projectNo}}"/&gt;
  </code></pre>
  
  <p>What is the right way to pass the parameter into the hidden field?</p>
  
  <p>Thx</p>