Hacker News Reader

Many QR code readers will auto-lowercase URLs that are encoded in alphanumeric encoding. The rest will recognize uppercase URLs just fine. Alphanumeric encoding was basically made for URLs.

View on HN

The QR alphanumeric input encoding does not include basic URL query string characters like '?' '&' '='

I've been putting URL in QR for like a decade, mixed case and query string included. How has it never been an issue?

Because you used bytes mode, not alphanumeric mode

Reply on news.ycombinator.com