web-feature: Partitioned cookies

Partitioned cookies allow you to opt a cookie into partitioned storage, with a separate cookie jar per top-level site. Also known as Cookies Having Independent Partitioned State or CHIPS.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

Chrome Browser

Android

114

Safari Browser

iOS

*

Notes

Unsupported keys in WebViews

  • WKWebView:
    api.ExtendableCookieChangeEvent.changed.partitioned_property api.ExtendableCookieChangeEvent.deleted.partitioned_property
  • Android WebView:
    http.headers.Set-Cookie.Partitioned

Support data provided by: BCD logo

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This feature was last updated on November 10, 2025.