Under Construction Image
3/3

It either boosted or its missing a head tag now!
if it is boosted you should see red and if you click image again you will see the hx-swapped in HTML partial file,
using the script set up several pages back.

The response is even smaller than before
21ish lines of HTML + a small optional script... but just the body tag. It is possible with boost.

This state would be suitable for an error message for anyone who is not 'boosted' at this stage to get them to pages where boost is not required.
This page has a viewport meta tag to make it barely usable on mobile in event of boost failure.

Could this be boosted and trimmed even further, possibly