ERROR: Failed by CORS. Behavior used for check: LEGACY

Hello everyone,

I am developing an ionic app and using auth0 service to implement the login and signup.
I have followed the Quick Start guide and when I have tried to test the login there is the following error in the log:
Type: Failed by CORS
Description: Origin http://localhost:8080 is not allowed. Behavior used for check: LEGACY

I have filled the field “Allowed Origins (CORS)” with http://localhost:8080 and it worked properly but I have already another app running and it is nos neccessary to add http://localhost:8080.

Can anyone help me to understand what is happeing?

I am using the Lock widget to implement the login.
I post some of my fields:
Allowed Callback URLs: DomainFromConfigFile://billand.eu.auth0.com/cordova/DomainFromConfigFile/callback
Allowed Origins (CORS): file://*

Thank you very much!

1 Like

Hey there!

Sorry for such delay in response! We’re doing our best in providing the best developer support experience out there, but sometimes the number of incoming questions is just too big for our bandwidth. Sorry for such inconvenience!

Do you still require further assistance from us?