Can't get the cookie in logout function

[yeka]

1.The way getting cookie in logout function can not get the cookie.

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2.Because the way setting cookie in authenticate function did not set the path, and it was automatically set to "/authenticate".

3.And the logout function is serving in the path -- "/logout". So the server can't get the cookie in path -- "/authenticate".

4.My way to solve this problem is to set the path to "/logout" in authenticate function, that works.

5.I wonder is that a right or good way to solve this problem ? And what is the best way?