No 'Access-Control-Allow-Origin' header is present on the requested resource in Keycloak 21

1

I’m trying to configure React app to work with Keycloak 21 and Spring Boot gateway. When I open remotely hosted React page and page a GET request I get error into browser:

Access to XMLHttpRequest at 'https://ip/realms/admin_console_realm/protocol/openid-connect/auth?response_type=code&client_id=admin_console_client&scope=openid&state=ze9ujRxcOaI9PhgKXozIsGd0VDCnjXSF9-u_t_8bXA0%3D&redirect_uri=http://ip/login/oauth2/code/keycloak&nonce=O9rOLQ0HH-eHZFi76hW08w2r3aCmn2Enm8df68HQvBA' (redirected from 'https://ip/api/microservice/dashboard/test') from origin 'https://xxxxxxx-xi.vercel.app' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Unfortunately all solutions on Google are for old version of Keycloak. Do you know into the latest version any working solution?

2

I’m having problems with Ajax requests as well, here is the discussion How to make sure Ajax re-authentication requests not to fail on CORS? · keycloak/keycloak · Discussion #20910 · GitHub

3

I have the same issue? Any know the solution?

4

Discussion in Quarkus users group https://groups.google.com/g/quarkus-dev/c/dtSHSp0-ThY/m/QeVIVbAdBAAJ

5

Hi everyone, I have the same issue.
Is possible to force set the “Access-Control-Allow-Origin” header on the Keycloak side?