From b484a56f7c78f96389109bacdf06eafdf4875893 Mon Sep 17 00:00:00 2001
From: Lee <7932644+strahe@users.noreply.github.com>
Date: Fri, 12 Sep 2025 17:34:30 +0800
Subject: [PATCH] Add OPTIONS route handler for CORS preflight requests

---
 web/srv.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/web/srv.go b/web/srv.go
index 92d99ae48..624952d14 100644
--- a/web/srv.go
+++ b/web/srv.go
@@ -42,6 +42,11 @@ var webDev = os.Getenv("CURIO_WEB_DEV") == "1"
 func GetSrv(ctx context.Context, deps *deps.Deps, devMode bool) (*http.Server, error) {
 	mx := mux.NewRouter()
 	mx.Use(corsMiddleware)
+	mx.Methods(http.MethodOptions).PathPrefix("/").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// Register OPTIONS routes for CORS preflight requests.
+		// Actual handling is done by corsMiddleware which intercepts
+		// all OPTIONS requests before they reach this handler.
+	})
 
 	if !devMode {
 		api.Routes(mx.PathPrefix("/api").Subrouter(), deps, webDev)