title: "Waiting for available socket", fix from the server end
body: <p>I am accessing my PHP/Apache website from Chrome. And Chrome refuses to load the page, saying "Waiting for available socket".</p>
  
  <p>Other pages on this same virtual host also have the problem.</p>
  
  <p>Other virtual hosts on the same server load perfectly fine.</p>
  
  <p>Please advise how I can fix this.</p>