Your calendar never leaves this page.
Access-Control-Allow-Origin) or the fetch will fail — no proxy is used.
Host this file yourself; the calendar data travels in the #fragment,
which browsers never send to any server. Best for calendars under ~50 KB.
A self-contained read-only viewer with the events baked in. Host it anywhere, or open it from disk. No storage, no requests.
Paste this straight into any HTML page. The whole viewer and its data live inside the attribute. Bulky, but fully self-contained.