title: Display or get the HTTP header attributes in Rails 4
body: <p>I have an application developed in Rails and I am trying to see the attributes in the HTTP header. </p>
  
  <p>Is there any way to read these attributes? Where are they stored?</p>
  
  <p>Someone mentioned <code>request.headers</code>. Is this correct? I am not able to see any attributes inside this array.</p>