Expires:thu, Nov 1981 08:52:00 GMT

It's a little familiar.

This is the expires information in the HTTP response headers.

This time is not right. Isn't it a little strange.

Find an interesting answer:

It ' s an attempt to disable caching.
The date is the birthday of the developer Sascha Schumann who added the code.
File:session.c
Authors:sascha Schumann < sascha@schumann.cx >
Andrei Zmievski < andrei@php.net >
...
Cache_limiter_func (Private)
{
Add_header ("Expires:thu, Nov 1981 08:52:00 GMT");
Cache_limiter (Private_no_expire) (Tsrmls_c);
}

This means: "In a site using PHP, if the developer does not set Expires information, then the default information is used, and the default value is" Expires:thu, Nov 1981 08:52:00 GMT ", which is the birthday of the engineer who developed the code. ~

Well, we're not against this kind of thing. But sometimes some security companies may think this is a problem when they scan your site.

How to deal with it if it is to be solved.

It's easy to set a expires in your code.

Set the expires time to the current time + 10 minutes

$ts = gmdate ("D, D M Y h:i:s", Times () + 600). "GMT";
Header ("Expires: $ts");