We had always reference images in our CSS File assets (not CSS Design) via keywords such as:
background: url('./?a=299885');/* or */
background: url(’%asset_url:299885%’);
Since being upgraded to V 5.3.1.1 we've noticed such images aren't displaying unless logged in the backend.
Is this bad practice we should of purged long ago or a possible bug?
I can rectify this by updating with static URLs for these, but for many sites and style sheets, I'd rather avoid that scenario if possible.
Cheers for any assistance.