Interesting, nostr:npub12vkcxr0luzwp8e673v29eqjhrr7p9vqq8asav85swaepclllj09sylpugg wouldn't let me submit a post with a note embed (clicking "post" just did nothing) because I had accidentally truncated the final char off the note id. A warning would be better: "invalid note id" or something.

nostr:note19tgnqlp4uurvdeknm8c0gmzm50ge4mt6w9wgtvv5gx40qku2em9sztek95