Express redirecting from mounted sub-apps / router

gistfile1.txt

res redirect can use patterns to respect an existing external mount point for an express app/router:

res.redirect('/relative/to/host');
res.redirect('relative/to/mount-point');
res.redirect('./relative/to/pathname');

so if you wanted to redirect back to the root mount point for your mounted app, you could do this:

res.redirect('./');

handy!