in auth-sessions/app.js [94:108]
function checkIfSignedIn(url) {
return function(req, res, next) {
if (req.url == url) {
const sessionCookie = req.cookies.session || '';
// User already logged in. Redirect to profile page.
admin.auth().verifySessionCookie(sessionCookie).then(function(decodedClaims) {
res.redirect('/profile');
}).catch(function(error) {
next();
});
} else {
next();
}
}
}