LocalNetworkBlockedForUrls

Block sites from making network requests to local network endpoints.

Supported versions

• Windows: ≥ 146
• macOS: ≥ 146
• Android: ≥ 146
• iOS: Not supported

Description

Controls which website origins are blocked from making Local Network Access requests to local network endpoints.

Network requests initiated from websites that match the specified URL patterns are blocked from issuing Local Network Access requests.

For origins not covered by the patterns specified in this policy, the user's personal configuration applies.

For detailed information about valid URL patterns, see Local network access in Microsoft Edge..

For more information about Local Network Access restrictions, see https://wicg.github.io/local-network-access/.

Multiple policies can list origins that affect requests to local network endpoints. If an origin matches more than one of the following policies, they take precedence in the following order:

• LocalNetworkBlockedForUrls
• LocalNetworkAllowedForUrls
• LoopbackNetworkBlockedForUrls
• LoopbackNetworkAllowedForUrls
• LocalNetworkAccessBlockedForUrls
• LocalNetworkAccessAllowedForUrls

This policy controls access to local network endpoints (private IP addresses) and can be used to block specific websites from accessing local network resources.

Supported features

• Can be mandatory: Yes
• Can be recommended: No
• Dynamic Policy Refresh: Yes
• Per Profile: Yes
• Applies to a profile that is signed in with a Microsoft account: No

Data type

• List of strings

Windows information and settings

Group Policy (ADMX) info

• GP unique name: LocalNetworkBlockedForUrls
• GP name: Block sites from making network requests to local network endpoints.
• GP path (Mandatory): Administrative Templates/Microsoft Edge/Network settings
• GP path (Recommended): N/A
• GP ADMX file name: MSEdge.admx

Example value

http://www.example.com:8080

[*.]example.edu

*

Registry settings

• Path (Mandatory): SOFTWARE\Policies\Microsoft\Edge\LocalNetworkBlockedForUrls
• Path (Recommended): N/A
• Value name: 1, 2, 3, ...
• Value type: List of REG_SZ

Example registry value

SOFTWARE\Policies\Microsoft\Edge\LocalNetworkBlockedForUrls\1 =

http://www.example.com:8080

SOFTWARE\Policies\Microsoft\Edge\LocalNetworkBlockedForUrls\2 =

[*.]example.edu

SOFTWARE\Policies\Microsoft\Edge\LocalNetworkBlockedForUrls\3 =

*

Mac information and settings

• Preference Key name: LocalNetworkBlockedForUrls
• Example value:

<array>
  <string>http://www.example.com:8080</string>
  <string>[*.]example.edu</string>
  <string>*</string>
</array>

Android information and settings

• Preference Key name: LocalNetworkBlockedForUrls
• Example value:

["http://www.example.com:8080", "[*.]example.edu", "*"]

See also

• Microsoft Edge - Policies