Generally available: Block domain-fronting behaviour on newly created customer resources
Published date: 08 November, 2022
In addition to our previous post: Generally available: Controls to block domain-fronting behaviour on customer resources; as of 8 November 2022, all newly created Azure Front Door, Azure Front Door (classic) or Azure CDN Standard from Microsoft (classic) resources will block any HTTP request that exhibits domain-fronting behaviour.
If you want to block domain fronting for any existing Azure Front Door, Azure Front Door (classic) or Azure CDN Standard from Microsoft (classic) resources created before 1 November 2022, please open a support request. Provide your subscription and Azure Front Door, Azure Front Door (classic) or Azure CDN Standard from Microsoft (classic) resource information in the support request. Once blocking of domain fronting has been enabled, Azure Front Door, Azure Front Door (classic) and Azure CDN Standard from Microsoft (classic) resources will block any HTTP requests that exhibit this behaviour.