caddy cache strategy

Caddyfile

(asset-paths) {
	path *.bmp *.jpg *.png *.svg *.gif *.pdf *.css *.js
}
(cache) {
	@content {
		not {
			import asset-paths
		}
	}
	header @content cache-control max-age=0
	@assets {
		import asset-paths
	}
	header @assets cache-control max-age=31536000
}