The URL is invalid: two slashes are needed after the http(s):.

Hello,

I have managed to get cors-anywhere setup on my plesk server :) But I seem to be running into an issue I cannot figure out, no matter what URL I use I am presented with the error: " The URL is invalid: two slashes are needed after the http(s):. "

This error shows no matter what URL I try to access for example:

https://mycorsproxy.url/http://google.com https://mycorsproxy.url/https://google.com

Am I missing something obvious here? Any help is much appreciated, thank you!