title: Jmeter - Extract id value from url with xpath
body: <p>I've the following URL 
  https://x.x.x.x/x/continue?processId=1234567&amp;formAction=register</p>
  
  <p>I need to extract the proccessId to use in the following request, but in JMeter with XPATH extractor value</p>
  
  <pre><code>//*[@id="signupForm"]
  </code></pre>
  
  <p>I can't recover the value, is there any option to solve it?</p>