title: How does Google redirect its search results?
body: <p>I input the query <code>java</code> into the search text box on <code>https://www.google.com</code>. One result is <code>https://en.wikipedia.org/wiki/Java_(programming_language)</code>. I get the following text by right clicking the link and selecting <code>Copy Link Address</code>. </p>
  
  <p><a href="https://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=10&amp;cad=rja&amp;uact=8&amp;ved=0ahUKEwiijvLpqvnSAhVFqY8KHU5UDyYQFghDMAk&amp;url=%68%74%74%70%73%3a%2f%2f%65%6e%2e%77%69%6b%69%70%65%64%69%61%2e%6f%72%67%2f%77%69%6b%69%2f%4a%61%76%61%5f%28%70%72%6f%67%72%61%6d%6d%69%6e%67%5f%6c%61%6e%67%75%61%67%65%29&amp;usg=AFQjCNEaMDPWkK-lszS-jjSYrWuKEdrmKA&amp;bvm=bv.150729734,d.dGc" rel="nofollow noreferrer">https://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=10&amp;cad=rja&amp;uact=8&amp;ved=0ahUKEwiijvLpqvnSAhVFqY8KHU5UDyYQFghDMAk&amp;url=%68%74%74%70%73%3a%2f%2f%65%6e%2e%77%69%6b%69%70%65%64%69%61%2e%6f%72%67%2f%77%69%6b%69%2f%4a%61%76%61%5f%28%70%72%6f%67%72%61%6d%6d%69%6e%67%5f%6c%61%6e%67%75%61%67%65%29&amp;usg=AFQjCNEaMDPWkK-lszS-jjSYrWuKEdrmKA&amp;bvm=bv.150729734,d.dGc</a></p>
  
  <p>And I paste the above link to Chrome address bar. And I use <code>Developer Tools</code> to monitor the HTTP network traffic. </p>
  
  <p><a href="https://i.stack.imgur.com/Oif0f.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Oif0f.png" alt="enter image description here"></a></p>
  
  <p>The first HTTP request is for the original link. And its status code is 200. How does Chrome make the following request for <code>https://en.wikipedia.org/wiki/Java_(programming_language)</code>？I know that a HTTP response with status code <code>302</code> can make brsowers following the link in <code>Location</code> header. But how is the redirect done in this case with status code <code>200</code>?</p>