Basic Security Challenge

I would like to change the “Basic Security Challenge” page : “Checking your browser before accessing …”
I have PRO version and added a link to the html page but it does not work, why?

Below my code:

<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1" />
#challenge-form, p { text-align:center; }
body { margin:30px; padding-top:10%; }

<p>My message ...............</p>



not showing my page, is standard Cloudflare page

Can you post the link to the page you were trying to set up?

Did the setup itself work?

I meant the URL of the page which you want to set up.

Looks okay. And when you define that URL it does not show any error but then eventually does not import it either?

When I click the preview in the panel CloudFlae it’s ok, but the source is:

Uncaught Error: Missing required parameters: sitekey
at new Du (recaptcha__en.js:497)
at new uG (recaptcha__en.js:509)
at Object.Fd [as render] (recaptcha__en.js:519)
at cf.challenge.js:2
at cf.challenge.js:2
at window.onloadCallback (cf.challenge.js:2)
at $p (recaptcha__en.js:507)
at iG (recaptcha__en.js:508)
at recaptcha__en.js:521
at recaptcha__en.js:540

I’d open a support ticket.