Allow ServiceWorker to dispatch navigation requests without waiting for its startup
Verified with Microsoft Edge 152.0.4191.53 — updated on September 2, 2026
Supported on: Microsoft Edge version 140, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge User Configuration\Administrative Templates\Microsoft Edge Description
This policy controls whether Microsoft Edge enables the ServiceWorkerAutoPreload feature. If you enable or don't configure this policy, Microsoft Edge can initiate the main resource network request concurrently with the Service Worker bootstrap process. This can improve performance in scenarios where the Service Worker isn't already running. If you disable this policy, Microsoft Edge will wait to dispatch the navigation request until after the Service Worker starts. This is a temporary policy and is removed in version 154 of Microsoft Edge. For more information on the feature, see https://github.com/WICG/service-worker-auto-preload.
Registry
Software\Policies\Microsoft\Edge Software\Policies\Microsoft\Edge Value name: ServiceWorkerAutoPreloadEnabled
Enabled: ServiceWorkerAutoPreloadEnabled = 1
Disabled: ServiceWorkerAutoPreloadEnabled = 0
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: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 140, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge]
"ServiceWorkerAutoPreloadEnabled"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 140, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ServiceWorkerAutoPreloadEnabled' -Value 1 -Type DWordIntune 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: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 140, 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge' -Name 'ServiceWorkerAutoPreloadEnabled' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 140, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ServiceWorkerAutoPreloadEnabled' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 140, 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: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 140, 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge' -Name 'ServiceWorkerAutoPreloadEnabled' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 140, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ServiceWorkerAutoPreloadEnabled' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.