php - Cookie length should be less then or equal to 4096 characters -

chrome dev tools has started warning me "cookie length should less or equal 4096 characters" (spelling mistake , all).

trouble is, cookie ~1100 characters.

however, , think may cause, cookie being set 7 times on lifetime of request.

so browser bug or should hack codeigniter not set 7 times?

below portion of response header (actual values replaced random strings) :-

set-cookie:cms_session=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; expires=fri, 07-apr-2017 20:20:36 gmt; max-age=28800; path=/ set-cookie:cms_session=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; expires=fri, 07-apr-2017 20:20:36 gmt; max-age=28800; path=/ set-cookie:cms_session=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; expires=fri, 07-apr-2017 20:20:36 gmt; max-age=28800; path=/ set-cookie:cms_session=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; expires=fri, 07-apr-2017 20:20:36 gmt; max-age=28800; path=/ set-cookie:cms_session=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; expires=fri, 07-apr-2017 20:20:36 gmt; max-age=28800; path=/ set-cookie:cms_session=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; expires=fri, 07-apr-2017 20:20:36 gmt; max-age=28800; path=/ set-cookie:cms_session=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; expires=fri, 07-apr-2017 20:20:36 gmt; max-age=28800; path=/ 

i didn't feel hacking ci2 used db method session handling set cookie once.