passport-auth0 provider callback route not triggered

[daniellwdb]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure it has not already been reported

Fastify version

^3.18.1

Plugin version

No response

Node.js version

16.3.0

Operating system

Linux

Operating system version (i.e. 20.04, 11.3, 10)

Ubuntu 20.04

Description

Using passport-auth0 things seem to work fine until it comes to the callback route, the callback route is not triggered, in the browser when checking the console, errors below show:

message: "Timeout after calling success log."
description: "Should have closed the web view."

Steps to Reproduce

For this project I set up an auth0 regular web application, then I followed the passport-auth0 and fastify-passport docs to set up the provider, when I go to the auth0 route, I can sign in and in the console I see a success message with an authResult object, however after a while a white page is shown with console errors as shown in this issue description

fastifyPassport.use(
  new Auth0Strategy(
    {
      domain: process.env.AUTH0_DOMAIN,
      clientID: process.env.AUTH0_CLIENT_ID,
      clientSecret: process.env.AUTH0_CLIENT_SECRET,
      callbackURL: `${process.env.SERVER_URL}/auth/auth0/callback`,
    },
    (_accessToken, _refreshToken, _extraParams, profile, done) => {
      return done(undefined, profile)
    }
  )
)

fastify.get(
  "/auth0",
  {
    preValidation: fastifyPassport.authenticate("auth0", {
      scope: "openid email profile",
    }),
  },
  // eslint-disable-next-line @typescript-eslint/no-empty-function
  async () => {}
)

fastify.get(
  "/auth0/callback",
  {
    preValidation: fastifyPassport.authenticate("auth0"),
  },
  async (_request, reply) => {
    return reply.send(JSON.stringify(_request.user, undefined, 2))
  }
)

Expected Behavior

I would expect to be redirected to the callback route

[mcollina]

Looks like a nasty bug!

Would you like to send a Pull Request to address this issue? Remember to add unit tests.