Originally Posted by PretjeNL

Hi all,

I have a picture problem... On my sites i have seperate banners for desktop (wide) and mobile (square), and i use WP Super Cache.
Now the problem is that sometimes on desktop i see the mobile banner and on mobile i get the desktop banner.
Is there a solution for this?

And can someone tell me what the best settings are for "Expiry Time & Garbage Collection" on WP Super Cache?
Also the plugin has so many options, i just don't know what to set. On Google i find different settings and they all say this settings are the best...

Thanks!