The API GET Category Tree has an internal cache. When performing a request using the VTEX internal domain and them, performing the same request using the client's domain the first request will be cached and on the response of the second request, done using the client's domain, we will return the categories URL's with the internal VTEX domain.

• Do the first request using VTEX internal domain, for example:

  curl --location -g --request GET 'https://.vtexcommercestable.com.br/api/catalog_system/pub/category/tree/3/'
  --header 'Content-Type: application/json'

• Do the second request using the client's domain, for example:

  curl --location -g --request GET 'https://www.clientdomain.com.br/api/catalog_system/pub/category/tree/3/'
  --header 'Content-Type: application/json'​

• Don't call the GET Category Tree API using the account VTEX internal domain.