Computer Configuration > Administrative Templates > Microsoft Edge > Network settings
Both
HKLM\Software\Policies\Microsoft\Edge
Local Network Access restrictions prevent public websites from making requests to devices on a user's local network without explicit user permission. If you enable this policy, Microsoft Edge blocks any request that would otherwise trigger a DevTools warning due to Local Network Access checks. These requests are denied without prompting the user. If you disable or don't configure this policy, Microsoft Edge handles these requests using the default behavior, which may include showing warnings in DevTools and allowing the request to proceed depending on the context. Note: This feature improves local network security by deprecating direct access to private IP addresses from public websites unless explicitly granted by the user. For more information about Local Network Access, see https://wicg.github.io/local-network-access/. Starting in version 140, Microsoft Edge introduces support for policies that manage Local Network Access behavior on a per-URL basis. You can configure exceptions to allow specific URLs to bypass Local Network Access restrictions. You can also block specific URLs from making Local Network Access requests.