Auth0_flutter missing transaction: invalid_state error

[tyf]

Hey there @CityHernandez welcome to the community!

This looks to be expected behavior across frameworks:

Invalid state on reload Auth0 callback url, using auth0-spa-js and Angular 8

This issue can be reproduced for different frameworks like React as well. In other words, It isn’t specific to Angular. In summary, before a login transaction starts auth0-spa-js library creates a random state variable and stores it in a cookie. Then, it makes a redirect to Auth0 server with this state parameter. After the user is authenticated Auth0 returns a code along with the same state parameter. Auth-spa-js library checks if the state returned matches with the state stored in the cookie a…