Joomla 3.7's System - Page Cache is broken. It leads to forced caching of the (nonexistent) result of pages resulting in a redirection, e.g. any kind of frontend save page when the user is not logged in. Moreover, it will do the same thing whenever the result of the page is not a 200 OK response, e.g. whenever you have a 403 Forbidden or 404 Not Found.
In all of these cases trying to access the same page again results in a blank page. We're talking about completely empty response with a 200 OK HTTP status.
Joomla 3.7's System - Page Cache is broken. It leads to forced caching of the (nonexistent) result of pages resulting in a redirection, e.g. any kind of frontend save page when the user is not logged in. Moreover, it will do the same thing whenever the result of the page is not a 200 OK response, e.g. whenever you have a 403 Forbidden or 404 Not Found.
In all of these cases trying to access the same page again results in a blank page. We're talking about completely empty response with a 200 OK HTTP status.