Fix product performance grouped JSON build

svc/main.go

@@ -227,6 +227,7 @@ InitRoutes — FULL V3 (Method-aware) PERMISSION EDITION
 func InitRoutes(pgDB *sql.DB, mssql *sql.DB, ml *mailer.GraphMailer) *mux.Router {
 
 	r := mux.NewRouter()
+	mountUploads(r)
 	mountSPA(r)
 
 	/*
@@ -1517,6 +1518,26 @@ func main() {
 
 }
 
+func mountUploads(r *mux.Router) {
+	root := strings.TrimSpace(os.Getenv("BLOB_ROOT"))
+	if root == "" {
+		return
+	}
+	uploadsRoot := filepath.Join(root, "uploads")
+	if fi, err := os.Stat(uploadsRoot); err != nil || !fi.IsDir() {
+		return
+	}
+	fileServer := http.StripPrefix("/uploads/", http.FileServer(http.Dir(uploadsRoot)))
+	r.PathPrefix("/uploads/").Handler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodGet && r.Method != http.MethodHead {
+			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+		w.Header().Set("Cache-Control", "public, max-age=3600")
+		fileServer.ServeHTTP(w, r)
+	})).Methods(http.MethodGet, http.MethodHead, http.MethodOptions)
+}
+
 func mountSPA(r *mux.Router) {
 	r.NotFoundHandler = http.HandlerFunc(spaIndex)
 	r.HandleFunc("/", spaIndex).Methods(http.MethodGet)