### Problem to solve As a webhook developper, I would like a "X-Gitlab-Instance" header added to webhooks events (eg: "X-Gitlab-Instance: gitlab.com", "X-Gitlab-Instance: gitlab.example.com") In order to process requests differently if the webhook server is configured to handle different instances. ### Intended users Webhook developpers ### Links / references https://docs.gitlab.com/ee/user/project/integrations/webhooks.html#overview