title: How to track js file where script is defined through debugger in firefox/chrome?
body: <p>I am looking the definition of javascript function <code>addHorizonLoadEvent</code>in following code, This function is defined in the separate file javascript file, So How I will track js file where the definition of that javascript is defined. </p>
  
  <pre><code>addHorizonLoadEvent(function() {
        show_hide_datepickers();
  });
  </code></pre>
  
  <p>Please see the image, I found the definition of addHorizonLoadEvent, But I want to go to the file, How I will go? 
  <img src="https://i.stack.imgur.com/2P979.png" alt="enter image description here"></p>