Proxy worker

Hi, I have a cloudflare worker that I use to proxy websites.

Let say I have

In my app, I don’t use I run it through a worker proxy.

So, client -> worker proxy -> example com

The problem comes when I try to proxy a website that is using cloudflare ssl full. I get a sal handshake error.

Can you please explain the problem to me and help me solve it? I don’t have access to the websites that I proxy.