title: Javascript background processing without web worker?
body: <p>I'm quite sure with this, but just to have your opinion:</p>
  
  <p>Is it somehow possible to perform operations in the background with Javascript if web workers are not available?
  Is there perhaps a way to "misuse" the asynchronous <code>setTimeout()</code> function or some other mechanisms?
  My goal is to read things from the <code>localStorage</code>, do a few transformations and send them via Ajax.</p>
  
  <p>Thanks.</p>