title: Storing the whole content of any website from a script?
body: <p>I'm working on a script that I run with Tampermonkey and I would like to add an option for offline navigation. The script is prepared to work with any website and is related to Web Adaptation. </p>
  
  <p>First of all, I've tried to set the manifest attribute from the script but I'm not sure if that is possible. Since I have no way to add new files to the websites, I'm not able to use a local <code>.manifest</code> file. Is there any way to achieve something like this:</p>
  
  <pre><code>    var a = document.getElementsByTagName("html");
      a.setAttribute("manifest", "CACHE MANIFEST URL1, URL2, URLn");
  </code></pre>
  
  <p>The other way I thought to manage this situation was using localStorage instead but the size of it is really small. 
  (Seen this <a href="https://stackoverflow.com/questions/30847063/how-can-i-use-localstorage-to-store-an-entire-page">How can I use `localStorage` to store an entire page?</a>)</p>
  
  <p>Any ideas?</p>