Redirect URL error page proxy

[bcarme95]

Hello,

I have a pfsense 2.4 in which I configured a transparent proxy.
It works well for anything http or I was able to customize the page, but for https sites I have no redirection (ERR_SSL_PROTOCOL_ERROR)

How do I redirect to an internal or external url of my choice?
In squidguard proxyfilter I chose the ext err page and I put the url in redirect info but it doesn't work at all.

Thank you for your help