TL;DR. golang.org/x/net/idna.Lookup.ToASCII runs UTS-46 NFKC mapping 0-9. A pre-IDNA net.ParseIP check rejects the NO_PROXY lists, TLS-SNI routers, and cookie-domain validators that TrimRight + ParseAddr golang.org/x/net/http/httpproxy, the canonical safe pattern, and two I ran into this one while writing a Go HTTP client for a private project. I idna.Lookup.ToASCII canonicalising the host The sha
I've been building web applications for 8 years, and locale handling has always been my silent killer. Date formats break in production, currency symbols get mangled, timezone calculations drift—all caught too late. That's why I took TestSprite for a real project spin. Integration testing is boring, expensive, and brittle. Write 100 Selenium tests, change the UI once, watch 60 fail. Most teams eit