App is served behind a reverse proxy that terminates TLS and forwards plain HTTP to nginx on :8001. Without TrustProxies, Laravel couldn't see the original request was HTTPS, so Livewire generated an http:// update endpoint on an https:// page — browsers block that as mixed active content. Trusting proxy headers fixes URL generation while leaving direct LAN http:// access on :8001 unaffected. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>