Enable BaseURL to support subdomains as well as main domain

Describe the problem you’d like to have solved

My base url is portal.mywebapp.com, but I’d like to also be able to use the alias of portal.eu.mywebapp.com . Using portal.eu.mywebapp.com redirects back to portal.mywebapp.com

I have a traditional webapp (eg. portal.mywebapp.com) We are using express-openid-connect For debugging purposes, we have urls to hit different clusters directly (e.g portal.eu.mywebapp.com, portal.us.mywebapp.com) When I try to use those, express-openid-connect causes a reauth, then callback, then a redirect to the baseURL of portal.mywebapp.com I would like the ability to stay on the new subdomain.

Describe the ideal solution

1. Allow express-open-id-connect to identify subdomains, and returnTo them
2. Allow us to update the baseDomain for a user based on the request url

Alternatives and current work-arounds

Im not sure of any workarounds.

Additional information, if any

[adamjmcgrath]

Hi @asyrialaK - thanks for raising this

You can specify the returnTo in the login method (see https://auth0.github.io/express-openid-connect/interfaces/loginoptions.html#returnto)

So you can set it to to something per user based on the request url by doing the following:

app.get('/login', (req, res) => {
  const returnTo = ... something per user base on req ...
  res.oidc.login({ returnTo })
});

You’ll also need to set the Cookie Domain to the naked domain (mywebapp.com), so the session cookie established in your redirect uri (portal.mywebapp.com) can be picked up by the url your user is returned to (portal.eu.mywebapp.com)

[asyrialaK]

Ahh…nevermind. it’s set through session domain

auth({
    session: ({
      domain: 'here'
    }),