Hi Stefan,
this can be configured in the gateway configuration (services\config\gateway-prod.yml). You can choose between a more general configuration or explicitly set allowed origins.
# Example 1
# activate cors filter
# allow all origins '*'
cors.enabled: true
# Example 2
# activate cors filter
# only allow requests from the https://yuuvis.io and https://enaioci.net origins
cors.enabled: true
cors.domains:
- https://yuuvis.io
- https://enaioci.net