title: Set custom header for the request made from <img/> tag
body: <p>Let's say I have a code like this:</p>
  
  <pre><code>&lt;img src='images/whatever.jpj' width='' height=''/&gt;
  </code></pre>
  
  <p>How to configure custom headers for this request?</p>
  
  <p>Will appreciate any help.</p>