title: Detect redirect in iFrame
body: <p>I may be asking the wrong question here so I will provide a small amount of detail about what I am trying to accomplish. </p>
  
  <p>I use a third party web app to track support tickets. They provide the code for a form that my users fill out and it submits to their domain. I want to use this form on two different domains, but unfortunately the third party uses a single, hard coded redirect value. This causes one of my sites to switch domains after submission. </p>
  
  <p>I was thinking I could embed their form in an iFrame, detect the redirection on successful form submission and instead redirect to one of my own pages. </p>
  
  <p>Pseudocode:</p>
  
  <pre><code>iframe.detectRedirection
  if (redirect == 'xyz.html') {  
       //do my own redirection in main window.
  }
  </code></pre>
  
  <p>So back to my original question - how can I detect the redirection in the iframe?</p>