From a6f99e0c49e5233f5cb2d20a42cafc76bd480387 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=BB=9D=E5=B0=98?= <237809796@qq.com>
Date: Mon, 16 Feb 2026 14:22:33 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=EF=BC=9A=E6=9C=AC=E5=9C=B0?=
 =?UTF-8?q?=E6=96=87=E4=BB=B6=E6=9C=8D=E5=8A=A1=E5=99=A8=20CORS=20?=
 =?UTF-8?q?=E6=94=AF=E6=8C=81?=
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问题：
- 前端运行在 http://wails.localhost
- 文件服务器运行在 http://localhost:18765
- 不同源导致 CORS 错误

修复：
- asset_handler.go 添加 CORS 响应头
- 支持 OPTIONS 预检请求
- 允许所有源访问（本地文件服务器）
---
 internal/filesystem/asset_handler.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

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)