title: How to efficiently change image attribute "src" from relative URL to absolute using jQuery?
body: <p>I need to change the <code>src</code> for an html image tag from relative to absolute url.</p>
  
  <p>I am using the following code. urlRelative and urlAbsolute are created correctly  but I cannot modify the image in the last line.</p>
  
  <p>What could be wrong wrong in my script?</p>
  
  <pre><code>..... // other code here
  
       request.done(function(resp) {
              var imgTags = $('img', resp).each(function() {
                  var urlRelative = $(this).attr("src");
                  var urlAbsolute = self.config.proxy_server + self.config.location_images + urlRelative;
                  $(this).attr("src").replace(urlRelative, urlAbsolute); // problem here
              });
  </code></pre>