diff --git a/internal/filesystem/asset_handler.go b/internal/filesystem/asset_handler.go
index 911900a..35a2fc5 100644
--- a/internal/filesystem/asset_handler.go
+++ b/internal/filesystem/asset_handler.go
@@ -67,6 +67,17 @@ func StartLocalFileServer() (string, error) {
 
 // handleLocalFileRequest 处理本地文件请求
 func handleLocalFileRequest(w http.ResponseWriter, r *http.Request) {
+	// CORS 头：允许所有源访问（因为这是本地文件服务器）
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+	w.Header().Set("Access-Control-Allow-Methods", "GET, OPTIONS")
+	w.Header().Set("Access-Control-Allow-Headers", "*")
+
+	// 处理 OPTIONS 预检请求
+	if r.Method == http.MethodOptions {
+		w.WriteHeader(http.StatusOK)
+		return
+	}
+
 	// 只处理 GET 请求
 	if r.Method != http.MethodGet {
 		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)