LWP::Protocol::PSGI is a module to hijack *any* code that uses the
LWP::UserAgent manpage underneath such that any HTTP or HTTPS requests can
be routed to your own PSGI application.

Because it works with any code that uses LWP, you can override various
WWW::*, Net::* or WebService::* modules such as the WWW::Mechanize manpage,
without modifying the calling code or its internals.

use WWW::Mechanize;
use LWP::Protocol::PSGI;