site.manifest were not loaded with Elixir Phoenix 1.6. It turned out I have to add the file to the whitelist.
I generated some favicons and added them to
Among others there is a
site.webmanifest file, which was not served by Phoenix.
It turned out, I have to whitelist that file in
# You should set gzip to true if you are running phx.digest # when deploying your static files in production. plug Plug.Static, at: "/", from: :slash_dreamer, gzip: false, only: ~w(assets fonts images favicon.ico robots.txt videos site.webmanifest)