Reverse proxy with Apache2 not working

Get Help
1

Hello, i had octopi installed on my raspberry pi 3, it works perfectly with my ender 3 locally.
My problems started when using my raspberry pi 4 i used apache2 reverse proxy to connect to host/ octopi. I used the guide in this site, I tried modifying myself, but anytime i try, i'm not able to login. I tried different browser, clearing cache.

<Location /octopi>
    ProxyPass http://192.168.1.43/
    ProxyPassReverse http://192.168.1.43/
    ProxyPassReverseCookiePath http:192.168.1.43/ /octopi
    RequestHeader set X-SCRIPT-NAME /octopi
    RequestHeader set X-SCHEME https
    Order allow,deny
    Allow from all
    RewriteEngine on
    RewriteCond %{HTTP:UPGRADE} =websocket [NC]
    RewriteRule /octopi/(.*) ws://192.168.1.43/$1 [P,L]
    RewriteCond %{HTTP:UPGRADE} !=websocket [NC]
    RewriteRule /octopi/(.*) http://192.168.1.43/$1 [P,L]
</Location>

As you can see, the pi3 is 192.168.1.43 and the pi4 is exposed on the internet.
You know what can i do?

Schermata 2020-03-19 alle 21.56.07
Schermata 2020-03-19 alle 21.56.071920×705 136 KB

EDIT:the problem does not appear if i use /octoprint/ instead of /octopi/

2

Fedora 33 & Apache here and the same thing with me ....
tried to use
<Location /octopi> .... and it did not work

switched to

<Location /octoprint> .... and everything is working except my webcam stream.
funny how the snapshot works but the stream does not ...

i redirect all traffic coming in on port 80 with this conf that i think may be the issue ???

<VirtualHost *:80>
ServerName myhost.webhop.net
RewriteEngine on
RewriteCond %{SERVER_NAME} =myhost.webhop.net
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]

<VirtualHost *:443>
ServerName myhost.webhop.net

<Location /octoprint/>
RequestHeader set X-SCRIPT-NAME /octoprint/
RequestHeader set X-SCHEME https
ProxyPassReverse http://192.168.1.250
RewriteEngine on
RewriteCond %{HTTP:UPGRADE} =websocket [NC]
RewriteRule /octoprint/(.) ws://192.168.1.250/$1 [P,L]
RewriteCond %{HTTP:UPGRADE} !=websocket [NC]
RewriteRule /octoprint/(.) http://192.168.1.250/$1 [P,L]

SSLCertificateFile /etc/letsencrypt/live/myhost.webhop.net/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/myhost.webhop.net/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf