title: Pass GET parameters in query-string
body: <p>I need to do 2 things:</p>
  
  <ul>
  <li>Pass couple of parameters to querystring</li>
  <li>Redirect to URL given in one of parameters</li>
  </ul>
  
  <p>One of the parameters is <code>redirect=URL_here</code>.
  The problem is, that i must redirect to that page: <code>/about/me?look=1&amp;sort=asc</code>
  Then, my URL looks like:</p>
  
  <pre><code>/mypage/?letter=S&amp;redirect=/about/me?look=1&amp;sort=asc
  </code></pre>
  
  <p>I know that this is wrong (contains two "?").
  The question is, how to make that query string correctly?</p>