SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based).

SuperTokens.com

I'm experiencing an issue where the cookies returned by `/auth/signinup` aren't being saved in my browser.  Anyone else experience anything similar (I'm working on localhost for both the frontend and backend, different ports)

I think I've solved it.  For anyone else experiencing the same issue, it's important to make sure all of your hostname, URL and URI are consistent in both the frontend and the backend.  Note that there is difference between `127.0.0.1` and `localhost`!