Install libplack-app-proxy-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libplack-app-proxy-perl
Plack::App::Proxy - middleware-aware proxy application for Plack
A streaming capable proxy for Plack. . This application is just like a normal PSGI application and is middleware aware, which means you can modify proxy requests (and responses) using Plack middleware stack.