Demo not showing up in Safari 13/14 because webkit doesn't fully implement esm export spec

[dmnsgn]

Unexpected identifier 'as'. Expected 'from' before exported module name because webkit still can't understand reexport export { default as bla } from "./bla.js";

https://github.com/tc39/proposal-export-default-from#common-concerns

Track status: https://caniuse.com/mdn-javascript_statements_export_namespace

[dmnsgn]

Looks like Safari 14.1 finally got its act together.