Public mode

No access to your tenant or devices. Every item links to its source. What this means

Sources need attention Customize Public modeDiscuss ChangeIntel on Discord

Brave Browser Group Policy settings

772 settings · 1.98.63 · 30 Oct 2026

29 folders · 235 settingsCSV
Back to the list

Brave Software › Brave

Allow ServiceWorker to dispatch navigation requests without waiting for its startup

Computer and userIntune-readyServiceWorkerAutoPreloadEnabled

Supported on Microsoft Windows 7 or later

Shown as of 1.98.63, 30 Oct 2026. See it in the latest templates.

What it does

https://github.com/WICG/service-worker-auto-preload The ServiceWorkerAutoPreload feature dispatches a network request for a main resource at the same time it begins the ServiceWorker bootstrap process. Setting the policy to Enabled or leaving it unset means Brave enables ServiceWorkerAutoPreload. The navigation request is automatically dispatched while starting the ServiceWorker in some scenarios, e.g. ServiceWorker is not running, If it is disabled, Brave will not enable ServiceWorkerAutoPreload. The navigation request is dispatched always after starting the ServiceWorker. This policy is a temporary measure to control the feature and will be removed in M154.

What it writes

Hive
HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry key
Software\Policies\BraveSoftware\Brave
Value name
ServiceWorkerAutoPreloadEnabled
When enabled
DWORD 1
When disabled
DWORD 0

Configure and deploy

Choose a state; the output below is generated from the template for exactly that.

State
Apply to

Enabled · Computer · template defaults

Registry file (.reg)

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\BraveSoftware\Brave]
"ServiceWorkerAutoPreloadEnabled"=dword:00000001


PowerShell

$ErrorActionPreference = 'Stop'

function Set-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $PropertyType,
        [Parameter(Mandatory = $true)][object] $Value
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        New-Item -Path $Path -Force | Out-Null
    }

    New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}

function Remove-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (Test-Path -LiteralPath $Path) {
        Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
    }
}

function Clear-RegistryKeyValues {
    param(
        [Parameter(Mandatory = $true)][string] $Path
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return
    }

    foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
        Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
    }
}

# Policy: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# Name: ServiceWorkerAutoPreloadEnabled
# Scope: Machine
# State: Enabled
# Source: brave.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\BraveSoftware\Brave' -Name 'ServiceWorkerAutoPreloadEnabled' -PropertyType 'DWord' -Value 1
  • The OMA-URI is an inferred ADMX-backed Policy CSP candidate derived from the source ADMX file name and policy name.
  • Some Microsoft policies use built-in Policy CSP pages whose area names don't match the ADMX file name, so verify the candidate against Microsoft Learn before deployment.

ADMX profile candidate (OMA-URI)

./Device/Vendor/MSFT/Policy/Config/ADMX_brave/ServiceWorkerAutoPreloadEnabled

ADMX SyncML candidate

<SyncML xmlns="SYNCML:SYNCML1.2">
  <SyncBody>
    <Replace>
      <CmdID>1</CmdID>
      <Item>
        <Meta>
          <Format>chr</Format>
          <Type>text/plain</Type>
        </Meta>
        <Target>
          <LocURI>./Device/Vendor/MSFT/Policy/Config/ADMX_brave/ServiceWorkerAutoPreloadEnabled</LocURI>
        </Target>
        <Data>&lt;enabled/&gt;</Data>
      </Item>
    </Replace>
    <Final/>
  </SyncBody>
</SyncML>
Intune remediation scripts

Detection

$ErrorActionPreference = 'Stop'
$reasons = [System.Collections.Generic.List[string]]::new()

function Test-RegistryValueExists {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return $false
    }

    return $null -ne (Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue)
}

function Test-RegistryValueEquals {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $Kind,
        [Parameter(Mandatory = $true)][object] $Expected
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return $false
    }

    $valueObject = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue
    if ($null -eq $valueObject) {
        return $false
    }

    $actual = $valueObject.$Name
    switch ($Kind) {
        'String' { return [string]$actual -ceq [string]$Expected }
        'ExpandString' { return [string]$actual -ceq [string]$Expected }
        'DWord' { return [uint32]$actual -eq [uint32]$Expected }
        'QWord' {
            $actualBits = if ($actual -is [uint64]) { $actual } else { [BitConverter]::ToUInt64([BitConverter]::GetBytes([int64]$actual), 0) }
            $expectedBits = if ($Expected -is [uint64]) { $Expected } else { [BitConverter]::ToUInt64([BitConverter]::GetBytes([int64]$Expected), 0) }
            return $actualBits -eq $expectedBits
        }
        'MultiString' {
            $actualArray = @($actual)
            $expectedArray = @($Expected)
            if ($actualArray.Count -ne $expectedArray.Count) { return $false }
            for ($index = 0; $index -lt $actualArray.Count; $index++) {
                if ([string]$actualArray[$index] -cne [string]$expectedArray[$index]) { return $false }
            }
            return $true
        }
        'Binary' {
            $actualArray = [byte[]]$actual
            $expectedArray = [byte[]]$Expected
            if ($actualArray.Length -ne $expectedArray.Length) { return $false }
            for ($index = 0; $index -lt $actualArray.Length; $index++) {
                if ($actualArray[$index] -ne $expectedArray[$index]) { return $false }
            }
            return $true
        }
        default { return [string]$actual -ceq [string]$Expected }
    }
}

# Policy: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# Name: ServiceWorkerAutoPreloadEnabled
# Scope: Machine
# State: Enabled
# Source: brave.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\BraveSoftware\Brave' -Name 'ServiceWorkerAutoPreloadEnabled' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\BraveSoftware\Brave\ServiceWorkerAutoPreloadEnabled') | Out-Null
}

if ($reasons.Count -eq 0) {
    Write-Output 'Compliant'
    exit 0
}

$reasons | ForEach-Object { Write-Output $_ }
exit 1

Remediation

$ErrorActionPreference = 'Stop'

function Set-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $PropertyType,
        [Parameter(Mandatory = $true)][object] $Value
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        New-Item -Path $Path -Force | Out-Null
    }

    New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}

function Remove-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (Test-Path -LiteralPath $Path) {
        Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
    }
}

function Clear-RegistryKeyValues {
    param(
        [Parameter(Mandatory = $true)][string] $Path
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return
    }

    foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
        Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
    }
}

# Policy: Allow ServiceWorker to dispatch navigation requests without waiting for its startup
# Name: ServiceWorkerAutoPreloadEnabled
# Scope: Machine
# State: Enabled
# Source: brave.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\BraveSoftware\Brave' -Name 'ServiceWorkerAutoPreloadEnabled' -PropertyType 'DWord' -Value 1

History 49 retained releases

  1. 1.92.1342 Jul 2026
    Registry key: Software\Policies\BraveSoftware\Brave · Value name: ServiceWorkerAutoPreloadEnabled
    • Description … a temporary measure to control the feature and will be removed in [removed: M144.][added: M154.]
      Whole description, marked

      https://github.com/WICG/service-worker-auto-preload The ServiceWorkerAutoPreload feature dispatches a network request for a main resource at the same time it begins the ServiceWorker bootstrap process. Setting the policy to Enabled or leaving it unset means Brave enables ServiceWorkerAutoPreload. The navigation request is automatically dispatched while starting the ServiceWorker in some scenarios, e.g. ServiceWorker is not running, If it is disabled, Brave will not enable ServiceWorkerAutoPreload. The navigation request is dispatched always after starting the ServiceWorker. This policy is a temporary measure to control the feature and will be removed in [removed: M144.][added: M154.]

  2. 1.88.13214 Mar 2026
    • Already present in the first release ChangeIntel keeps.

47 later releases left it unchanged.

Template

Internal name
ServiceWorkerAutoPreloadEnabled
Namespace
BraveSoftware.Policies.Brave
Template file
brave.admx
Release
Brave Browser 1.98.63 · file set 584cbd5520d874db…
Definition, editor controls and support

Definition

<policy class="Both" displayName="$(string.ServiceWorkerAutoPreloadEnabled)" explainText="$(string.ServiceWorkerAutoPreloadEnabled_Explain)" key="Software\Policies\BraveSoftware\Brave" name="ServiceWorkerAutoPreloadEnabled" presentation="$(presentation.ServiceWorkerAutoPreloadEnabled)" valueName="ServiceWorkerAutoPreloadEnabled" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="BraveSoftware.Policies.Brave:brave" />
      <supportedOn ref="BraveSoftware.Policies.Brave:SUPPORTED_WIN7" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
    </policy>

Editor controls

<presentation id="ServiceWorkerAutoPreloadEnabled" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />

Supported platforms and category

BraveSoftware.Policies.Brave:category:Cat_Brave
<category displayName="$(string.Cat_Brave)" name="Cat_Brave" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
BraveSoftware.Policies.Brave:category:brave
<category displayName="$(string.brave)" name="brave" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="BraveSoftware.Policies.Brave:Cat_Brave" />
    </category>
BraveSoftware.Policies.Brave:definition:SUPPORTED_WIN7
<definition displayName="$(string.SUPPORTED_WIN7)" name="SUPPORTED_WIN7" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
BraveSoftware.Policies.Brave:category:Cat_Brave
<category displayName="$(string.Cat_Brave)" name="Cat_Brave" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="BraveSoftware.Policies.Brave:Cat_Brave">Brave Software</string></strings>
BraveSoftware.Policies.Brave:category:brave
<category displayName="$(string.brave)" name="brave" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="BraveSoftware.Policies.Brave:Cat_Brave" />
    </category>
<strings><string id="BraveSoftware.Policies.Brave:brave">Brave</string></strings>
BraveSoftware.Policies.Brave:definition:SUPPORTED_WIN7
<definition displayName="$(string.SUPPORTED_WIN7)" name="SUPPORTED_WIN7" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="BraveSoftware.Policies.Brave:SUPPORTED_WIN7">Microsoft Windows 7 or later</string></strings>
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 19:39 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current