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Set a Cookie that never expires with JavaScript

Posted by I. B. Gd Pramana A. Putra, 11 Oct 22, last updated 11 Oct 22

You can not create a cookie that never expires (in theory), but you can set a cookie with the longest value possible for the expiry date value.

document.cookie = "my_cookie=cookie_value; expires=Fri, 31 Dec 9999 21:10:10 GMT";

Replace my_cookie and cookie_value with any cookie value that you desire. Note that 31 Dec 9999 is the highest value that we can set for the cookie to be never expired (practically).

Reference: MSDN - Browser Cookie

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