# Recommended MIME type for PWA manifests: # https://github.com/w3c/manifest/issues/689 /site.webmanifest Content-Type: application/manifest+json # AMP cache invalidation key requirements: # https://developers.google.com/amp/cache/update-cache#update-cache-guidelines /.well-known/amphtml/apikey.pub Content-Type: text/plain; charset=UTF-8