Sorry, but documentation of auth0 is not the best source of knowledge on how to use auth0. Not something that you expect to happen, right? Official documentation is okay if you need to understand only a basic usage, but if you need more than that, you pretty much on your own. At least it’s my experience with this service. Especially for not so popular topic of “renewing auth0 token for SPA (Single Page Application)“. So let’s talk about exactly that.