[Dancer-users] Problem with Dancer::Plugin::Ajax under Plack

I am trying to run multiple Dancer apps under Plack, One of my routes is an "ajax" route using Dancer::Plugin::Ajax My $app inside the psgi file is defined as: my $app = sub {   local $ENV{DANCER_APPDIR} = 'MyAppDir'; setting appdir => 'MyAppDir';   load_app "MyApp";   Dancer::App->set_running_app('MyApp');   Dancer::Config->load;   my $request = Dancer::Request->new( env => $env );   Dancer->dance($request); }; Unfortunately, the "ajax" route is not recognised and it gives me a 404 However I find that when I add Dancer::Handler->init_request_headers($env); in the sub, the Ajax route works fine. Dancer::Handler docs are not available and I need to understand why this works Would appreciate if someone could explain Thank you