title: How to modify a request in Fiddler?
body: <p>I'm looking for a simple way to intercept a web request and modify the contents of the request (mainly <strong>POSTs</strong>) using <strong>Fiddler</strong>. </p>
  
  <p>This is to test server-side validation.</p>
  
  <p>I have to use <strong>Fiddler</strong>, however I haven't found a good simple way to do so.</p>
  
  <p>There have been several documented ways to write <em>scripts</em> to intercept traffic and change headers, but I would like to do it without writing a script - this tool needs to be used by the testers and writing/modifying scripts all the time by different testers may be annoying.</p>
  
  <p>Example:</p>
  
  <p>Simple POST with 2 parameters:  </p>
  
  <pre><code>field1=foo, 
  field2=bar
  </code></pre>
  
  <p>I would like to intercept the request, modify the value of <strong>field2</strong> to be something like bañ (note the <strong>ñ</strong>, in my case is <strong>invalid</strong> and that is what I want to test).</p>