A MODx Revolution plugin which handles the If-Modified-Since request header and returns the Last-Modified response header with the 304 response code when it is necessary (more info and site check on https://last-modified.com/en/)
After the installation process, please visit System Settings, choose a lastmodified namespace, and set the desired settings.
- response - specifies a value of the Cache-control response directive, available options: "private", "public".
- maxage – specifies a value of the Cache-control max-age directive in seconds, default is 3600.
- expires – specifies a value of the Expires header as an offset from the current time in seconds, default is 3600.
- update_parent - updates the last editing date of the parent resource to show that it has been updated too. Default false.
- update_level - sets a nested level from the current resource and up to update the last editing date. Default 1.
- update_start - updates the last editing date of the start page on a resource change. Default false.
- prevent_authorized - prevents If-Modified-Since header handling for authorized users. Default true.
- prevent_session - prevents If-Modified-Since header handling when any of the values (comma-separated list) occur in session names. Default minishop2.
- exclude - prevents If-Modified-Since header handling for any of listed document ids (comma-separated list). Empty by default.
Please note, when the 304 response code is returned, it terminates the execution of the script (this is an implicit redirection to a cached resource).
If this behavior is undesirable or affects the information presented on the site, as with Minishop, feel free to use the prevent_session setting.