Computer Configuration > Administrative Templates > Microsoft Edge > Network settings
Both
HKLM\Software\Policies\Microsoft\Edge
This policy allows for opting out of restrictions on requests to local network endpoints. If you enable this policy, Local Network Access requests will only display warnings in Edge DevTools when Local Network Access checks fail. If you disable or don't configure this policy, Local Network Access requests will follow the default handling behavior. For more information about Local Network Access restrictions, see Local Network Access . This enterprise policy is temporary and will be removed after Microsoft Edge version 146. To allow specific URL patterns that should automatically be granted Local Network Access permission, use the LocalNetworkAccessAllowedForUrls policy. Note: If the LocalNetworkAccessRestrictionsEnabled policy is enabled, it takes precedence over this policy.