Add 'backup' checks in the PHP to serve a cached page if it exists.
If Vivio Swift is being used on a server where the .htaccess file doesn't get used, let's add a backup check in the PHP to check for a cached page and serve that if it exists.
The ideal place for this is probably in the on-access cache area.
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information