title: Http requests / concurrency?
body: <p>Say a website on my localhost takes about 3 seconds to do each request. This is fine, and as expected (as it is doing some fancy networking behind the scenes).</p>
  
  <p>However, if i open the same url in tabs (in firefox), then reload them all at the same time, it appears to load each page sequentially rather than all at the same time. What is this all about?</p>
  
  <p>Have tried it on windows server 2008 iis and windows 7 iis</p>