Preload header with a static copy of the header menu
Preload header with a static copy of the header menu

It will quickly become obsolete but it should only be served
if the backend is down for whatever reason.

infolis/infolis.github.io,infolis/infolis.github.io,LetschM/infolis.github.io,LetschM/infolis.github.io,infolis/infolis.github.io