Caching Web Content XGS4500 (SFOS 19.5.3 )?

Hello Timm Buse ,

Thanks for reaching out to Sophos Community.

Are there deny message/s from Log Viewer > Web Filter / IPS when you are trying to access the site? Are all users on the network affected? Could you confirm if the "Content Delivery" category is not restricted on your Web Filtering/Policy configuration?

On the other hand, you may follow this document guide for configuring exceptions: https://doc.sophos.com/nsg/sophos-firewall/20.0/help/en-us/webhelp/onlinehelp/AdministratorHelp/Web/Exceptions/WebExceptionAdd/index.html

Further, here is a KBA regarding Web content caching details if it is enabled on your environment (which is turned off by default) https://support.sophos.com/support/s/article/KB-000038951?language=en_US

Thank you for your time and patience and thank you for choosing Sophos.

Regards,

It is unlikely the XG is doing any caching that would affect this.

Can you try clearing your browser cache (Control-Shift-Delete) or using Control-F5 for full refresh, or using private/incognito mode.

We already had this behaviour in the old days with UTM Firewalls as well.

Turned out to be a missing "pragma nocache" Meta-Tag at the webserver side.

This is most certainly a cache problem, you only need to find which cache is causing this.

Is there a possibility to add custom Headerto every https-request, so our service provider can use cloudflare cache rules to add cache-control values for example "x-que-disable-cache = true"?

No you cannot do this through the Web Proxy for outgoing web request.