My response headers:My Response headers are give below:
Cache-Control: max-age=0, must-revalidate, no-cache, no-store
Connection: keep-alive
Content-Encoding: gzip
Content-Type: text/html; charset=UTF-8
Date: Tue, 08 May 2018 09:21:19 GMT
Expires: Mon, 08 May 2017 09:20:52 GMT
Pragma: no-cache
Server: nginx/1.10.3
Set-Cookie: form_key=HfXDuOKLNlnRkV3x; expires=Tue, 08-May-2018 10:20:52 GMT; Max-Age=3600; path=/; domain=
Set-Cookie: PHPSESSID=s72hj0entb9avq6f8vtkt53bcu; expires=Tue, 08-May-2018 10:20:52 GMT; Max-Age=3600; path=/; domain=; HttpOnly
Transfer-Encoding: chunked
Vary: Accept-Encoding
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Magento-Debug: 1
X-XSS-Protection: 1; mode=block