Chris Blakley

Ok no problem– thanks for the clarification!

Yes, this does account for DST. It uses the PHP functions `date_sunrise()` and `date_sunset()` ([documentation](https://www.php.net/manual/en/function.date-sunrise.php)) which ask for GMT offset in addition to lat/lng. That parameter should use the offset...

This is the new syntax: `Cache-Control: max-age=1, stale-while-revalidate=59` The number is in seconds: Indicates the client will accept a stale response, while asynchronously checking in the background for a fresh...

Waiting on Safari to support this before we can use it: https://caniuse.com/mdn-http_headers_cache-control_stale-while-revalidate 

Still not supported in Safari...

Just waiting on Safari now– looks like it's behind a flag in the tech preview: 

Coming in Safari 16 and once that happens this is good to use.

Good article about the Sanitizer API: https://web.dev/sanitizer/

 Edit Aug 2022– coming to Chrome 105

As of July 2022:  Getting closer...