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LegacySameSiteCookieBehaviorEnabledForDomainList

Revert to legacy SameSite behavior for cookies on specified sites (obsolete)

OBSOLETE: This policy is obsolete and doesn't work after Microsoft Edge version 132.

Supported versions

  • On Windows and macOS since 80, until 132

Description

Cookies set for domains match specified patterns will revert to legacy SameSite behavior.

Reverting to legacy behavior causes cookies that don't specify a SameSite attribute to be treated as if they were "SameSite=None", removes the requirement for "SameSite=None" cookies to carry the "Secure" attribute, and skips the scheme comparison when evaluating if two sites are same-site.

If you don't set this policy, the global default value will be used. The global default will also be used for cookies on domains not covered by the patterns you specify.

The global default value can be configured using the LegacySameSiteCookieBehaviorEnabled policy. If LegacySameSiteCookieBehaviorEnabled is unset, the global default value falls back to other configuration sources.

For detailed information about valid URL patterns, see https://go.microsoft.com/fwlink/?linkid=2095322.

Note that patterns you list in this policy are treated as domains, not URLs, so you should not specify a scheme or port.

The policy has been discontinued starting from Edge 132.

Supported features

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

Data type

  • List of strings

Windows information and settings

Group Policy (ADMX) info

  • GP unique name: LegacySameSiteCookieBehaviorEnabledForDomainList
  • GP name: Revert to legacy SameSite behavior for cookies on specified sites (obsolete)
  • GP path (Mandatory): Administrative Templates/Microsoft Edge/Content settings
  • GP path (Recommended): N/A
  • GP ADMX file name: MSEdge.admx

Example value

www.example.com

[*.]example.edu

Registry settings

  • Path (Mandatory): SOFTWARE\Policies\Microsoft\Edge\LegacySameSiteCookieBehaviorEnabledForDomainList
  • Path (Recommended): N/A
  • Value name: 1, 2, 3, ...
  • Value type: List of REG_SZ

Example registry value

SOFTWARE\Policies\Microsoft\Edge\LegacySameSiteCookieBehaviorEnabledForDomainList\1 =

www.example.com

SOFTWARE\Policies\Microsoft\Edge\LegacySameSiteCookieBehaviorEnabledForDomainList\2 =

[*.]example.edu

Mac information and settings

  • Preference Key name: LegacySameSiteCookieBehaviorEnabledForDomainList
  • Example value:
<array>
  <string>www.example.com</string>
  <string>[*.]example.edu</string>
</array>

See also