title: Loading script from HTTP is automatically converted to HTTPS for some users
body: <p>I am trying to load socket.io using the following code:</p>
  
  <pre><code>&lt;script src="http://cdn.socket.io/socket.io-1.4.5.js"&gt;&lt;/script&gt;
  </code></pre>
  
  <p>However some users have reported the following error to me:</p>
  
  <pre><code>Failed to load https://cdn.socket.io/socket.io-1.4.5.js ERR_SSL_PROTOCOL_ERROR
  </code></pre>
  
  <p>Is this an automatic security setting on modern browsers? And if so can it be disabled?</p>