title: how do i change the post body before it reaches the server?
body: <p>Trying to code my first fiddler script.</p>
  
  <p>How do i change the post body before it reaches the server?</p>
  
  <p>I mean, i fill the form, click submit, then pause to change what i want, and, finally, send to server.</p>
  
  <p>I found this script to change the response, but i want to change the request.</p>
  
  <pre><code>if (oSession.HostnameIs("www.bayden.com") &amp;&amp; oSession.oResponse.headers.ExistsAndContains("Content-Type","text/html")){
    oSession.utilDecodeResponse();
    oSession.utilReplaceInResponse('&lt;b&gt;','&lt;u&gt;');
  }
  </code></pre>