title: finding recaptcha callback
body: <p>im trying to get data from this page </p>
  
  <p><a href="https://ahrefs.com/backlink-checker" rel="nofollow noreferrer">https://ahrefs.com/backlink-checker</a></p>
  
  <p>its basically a website to check a domain rank and other status ,  when u enter a domain and click the check <code>Check backlinks</code> button it shows a google recaptcha </p>
  
  <p>im using a captcha service to bypass this , problem is this site uses a callback on the captcha completion ,  when i recive the token from my api and put it in the <code>#g-recaptcha-response</code> i have to call the callback to move on there is no submit button </p>
  
  <p>i used to find the callback in this object</p>
  
  <p><code>___grecaptcha_cfg.clients[0].L.L.callback</code></p>
  
  <p>and just call it like </p>
  
  <pre><code>page.evaluate(`___grecaptcha_cfg.clients[0].L.L.callback("${cap}")`)
  </code></pre>
  
  <p>but recently this obeject is nowhere to be found </p>
  
  <p>and i get 
  <code>Evaluation failed: TypeError: Cannot read property 'L' of undefined</code></p>
  
  <p>any idea?</p>
  
  <p><a href="https://i.stack.imgur.com/Ej8iK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ej8iK.png" alt="enter image description here"></a></p>