Why is Cypress getting stuck on authorize/resume?

I have a simple cypress script I am trying to use to log in…

const fillLogin = async () => {
  cy.log("Filling login");
  return cy.get(".main-container")

On a normal browser everything works fine but using cypress it just gets stuck at https://me.us.auth0.com/authorize/resume?state=... and never redirects back to callback like it is supposed to. Any ideas?