title: How to not let sites block your iframe?
body: <p>I would like to open sites in an iframe but some show up blank. I want to either hack around it somehow or detect if the iframe is blocked and then redirect to another page on my site.</p>
  
  <p>If I put a URL to Google into an iframe it would work but some websites do something in the code to not allow you to open their site in an iframe on your own website.</p>