TLS13EarlyDataEnabled

Control whether TLS 1.3 Early Data is enabled in Microsoft Edge

Supported versions

• On Windows and macOS since 138 or later

Description

This policy controls whether TLS 1.3 Early Data is enabled in Microsoft Edge.

TLS 1.3 Early Data is an extension that allows an HTTP request to be sent in parallel with the TLS handshake. When enabled and supported by the server, this can improve page load performance.

Enabled – Microsoft Edge enables TLS 1.3 Early Data.

Disabled – Microsoft Edge disables TLS 1.3 Early Data.

Not configured – Microsoft Edge follows the default rollout process for TLS 1.3 Early Data.

NOTE: When this feature is enabled, whether TLS 1.3 Early Data is used depends on server support. Most modern TLS servers and middleware can handle or reject Early Data without interrupting the connection. However, improperly implemented TLS stacks may cause connection failures. If such issues occur, contact the device or software vendor for a resolution.

This policy is temporary and intended to help test for compatibility issues. It may be removed in a future release once the feature is fully rolled out.

Supported features

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

Data type

• Boolean

Windows information and settings

Group Policy (ADMX) info

• GP unique name: TLS13EarlyDataEnabled
• GP name: Control whether TLS 1.3 Early Data is enabled in Microsoft Edge
• GP path (Mandatory): Administrative Templates/Microsoft Edge
• GP path (Recommended): N/A
• GP ADMX file name: MSEdge.admx

Example value

Enabled

Registry settings

• Path (Mandatory): SOFTWARE\Policies\Microsoft\Edge
• Path (Recommended): N/A
• Value name: TLS13EarlyDataEnabled
• Value type: REG_DWORD

Example registry value

0x00000001

Mac information and settings

• Preference Key name: TLS13EarlyDataEnabled
• Example value:

<true/>

See also

• Microsoft Edge - Policies