Allowed Origins for Proxied WebAuthn Requests from Remote Desktop Applications.
Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026
Supported on: Microsoft Edge version 137, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge User Configuration\Administrative Templates\Microsoft Edge Description
This policy defines a list of allowed HTTPS origins for remote desktop client applications that initiate WebAuthn API requests from a browsing session on a remote host. Origins specified in this policy can request WebAuthn authentication for Relying Party IDs (RP IDs) they wouldn't typically be authorized to claim. Only HTTPS origins are supported. Wildcards aren't permitted. Entries that don't meet these requirements will be ignored. For more information about the WebAuthn Remote Desktop Support feature, see https://github.com/w3c/webauthn/wiki/Explainer:-Remote-Desktop-Support/a4e158c569f456c759d0ddd294a9015bd4d4eb9a. Example value: https://server:8080/
Registry
HKLM
Software\Policies\Microsoft\Edge HKCU
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: Allowed Origins for Proxied WebAuthn Requests from Remote Desktop Applications.
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 137, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\WebAuthenticationRemoteDesktopAllowedOrigins]
; List values: enter one value per line in the builder UI.More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Allowed Origins for Proxied WebAuthn Requests from Remote Desktop Applications.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 137, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WebAuthenticationRemoteDesktopAllowedOrigins'
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: Allowed Origins for Proxied WebAuthn Requests from Remote Desktop Applications.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 137, 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\WebAuthenticationRemoteDesktopAllowedOrigins: 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: Allowed Origins for Proxied WebAuthn Requests from Remote Desktop Applications.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 137, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WebAuthenticationRemoteDesktopAllowedOrigins'
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: Allowed Origins for Proxied WebAuthn Requests from Remote Desktop Applications.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 137, 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: Allowed Origins for Proxied WebAuthn Requests from Remote Desktop Applications.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 137, 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\WebAuthenticationRemoteDesktopAllowedOrigins: 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: Allowed Origins for Proxied WebAuthn Requests from Remote Desktop Applications.
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 137, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WebAuthenticationRemoteDesktopAllowedOrigins'
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.