Custom Error Pages does not support HTTPS

[Epafined]

Curstom Error Pages configuration only support http://, not support https://.
but mysite added SSL, like as https://xxxx/error.html ,It can not be accessed by http://xxxx/error.html

(picture see below:)

[KangJL]

Check this out

How to force all traffic to HTTPS

After you’ve enabled SSL for your website, you’ll probably want to redirect all traffic on your website to the https version of your site. There are multiple ways to do that. Let’s compare some commonly used ways. Using script configuration Some scripts (including Wordpress) have a setting which allows you to set your website URL. By changing this URL from http://example.com to https://example.com, the script will probably redirect visitors to the https version of your site. Even if your script…

[Admin]

You can probably just enter it with http:// instead of https://. Your HTTPS redirect should make sure people will see the HTTPS page.

Alternatively, you can set the error page by setting the ErrorDocument line by hand in your .htaccess file.