With the classic Drupal approach, the Domain Access module recognises the requested domain via the HTTP request or the
$_SERVER['HTTP_HOST'] variable, thanks to the
DomainNegotiator::negotiateActiveHostname method. Everything's managed automatically, only the content related to the given domain can be displayed 🎉
However with the decoupled Drupal approach, the front-end is separated. How can we make Domain Access understand that I'm requesting a given domain?
I mention that only one domain is taken into account in the schema configuration page of the Drupal GraphQL module: