Adds the ETag, Last-Modified, Expires and Cache-Control headers to HTTP responses generated by WordPress to facilitate caching.
OBSOLETE: Concatenates, minifies & optimizes scripts using Google's Closure Compiler. For other scripts (on CDNs), removes default 'ver&
Enable Posts and Pages to automatically expire and change at a certain time, and provide notification of expiration.
Allows designated content to be shown only until an expiration date/time.
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