title: How to print (in the screen) all JS code required by an iframe with external url
body: <p>I want to show in an iframe a webpage (an external url), and then show all the code JS requested by this iframe in a textarea. </p>
  
  <p>It's like a firebug console (where we can see all the scripts and theirs sources), but I can only use frontend language (can be any library, or even pure javascript).</p>
  
  <p>I have a cross domain problem, and even when I am able to do the request (like using getScript) I am not able to get the source, the code itself... There is no "textResponse"...</p>
  
  <p>How can I do that? Is it possible?</p>