Cookie2

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Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

The obsolete Cookie2 HTTP request header used to advise the server that the user agent understands "new-style" cookies, but nowadays user agents will use the Cookie header instead, not this one.

Header type Request header
Forbidden header name yes

Examples

Cookie2: $Version="1"

Specifications

Specification Title
RFC 2965: Cookie2 Historic specification of HTTP State Management Mechanism, obsoleted by RFC 6265

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Cookie2
Deprecated
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No

Legend

No support  
No support
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.

See also