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Cookie2

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This feature is obsolete.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

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support No No No No No No
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support No No No No No No No

See also

Edit this page on MDN

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cookie2