Block sites from making network requests to the local device.
Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026
Supported on: Microsoft Edge version 146, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge\Network settings User Configuration\Administrative Templates\Microsoft Edge\Network settings Description
Specifies a list of URL patterns for which requests initiated from matching origins to loopback addresses (127.0.0.1, ::1, localhost) are blocked from issuing Local Network Access requests. If a requesting origin matches a URL pattern specified in this policy, requests to loopback addresses are blocked. For origins not covered by this policy, the user's personal settings and local network access restrictions apply. Multiple policies can specify origins that affect requests to the local device. If an origin matches more than one of the following policies, they are applied in the following order of precedence: - LoopbackNetworkBlockedForUrls - LoopbackNetworkAllowedForUrls - LocalNetworkAccessBlockedForUrls - LocalNetworkAccessAllowedForUrls Note: This policy improves local network security by blocking specified public websites from accessing loopback addresses. It helps prevent unauthorized external sites from reaching local services running on the device unless explicitly permitted. For more information about Local Network Access, see https://wicg.github.io/local-network-access/ Example value: http://www.example.com:8080 [*.]example.edu *
Registry
Software\Policies\Microsoft\Edge Software\Policies\Microsoft\Edge Export Builder
BETAConfigure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.
These exports write the registry — this is not a managed GPO. ⓘ
Applying both scopes creates an ambiguous configuration (computer takes precedence over user). Only do this intentionally.
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Block sites from making network requests to the local device.
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 146, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\LoopbackNetworkBlockedForUrls]
; List values: enter one value per line in the builder UI.More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Block sites from making network requests to the local device.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 146, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\LoopbackNetworkBlockedForUrls'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Intune XML
No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Block sites from making network requests to the local device.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 146, Windows 7 or later
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
# HKLM:\Software\Policies\Microsoft\Edge\LoopbackNetworkBlockedForUrls: List values: enter one value per line in the builder UI.
# No testable registry values are available for this state.
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Block sites from making network requests to the local device.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 146, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\LoopbackNetworkBlockedForUrls'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.SCCM scripts
# Exported from gporais.com
# Policy: Block sites from making network requests to the local device.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 146, Windows 7 or later
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Block sites from making network requests to the local device.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 146, Windows 7 or later
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
# HKLM:\Software\Policies\Microsoft\Edge\LoopbackNetworkBlockedForUrls: List values: enter one value per line in the builder UI.
# No testable registry values are available for this state.
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Block sites from making network requests to the local device.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 146, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\LoopbackNetworkBlockedForUrls'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.