diff --git a/proxy/handler.go b/proxy/handler.go
index 889fa87..f14c94d 100644
--- a/proxy/handler.go
+++ b/proxy/handler.go
@@ -82,7 +82,6 @@ func (h *ProxyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
     client := &http.Client{
         Timeout: 30 * time.Second,
         CheckRedirect: func(req *http.Request, via []*http.Request) error {
-            // 验证重定向 URL
             if err := h.validator.ValidateURL(req.URL.String()); err != nil {
                 return err
             }
@@ -98,7 +97,7 @@ func (h *ProxyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
     }
     defer resp.Body.Close()
     
-    // 读取响应体
+    // 读取响应体（会自动解压 gzip）
     body, err := h.readResponseBody(resp)
     if err != nil {
         log.Printf("Failed to read response: %v", err)
@@ -110,10 +109,14 @@ func (h *ProxyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
     contentType := resp.Header.Get("Content-Type")
     body = h.rewriteContent(body, targetURL, contentType)
     
-    // 缓存响应 - 转换 http.Header 为 map[string]string
+    // 缓存响应 - 转换 headers 并删除 Content-Encoding
     if h.shouldCache(resp) {
         headers := make(map[string]string)
         for key, values := range resp.Header {
+            // 跳过 Content-Encoding，因为我们已经解压了
+            if key == "Content-Encoding" || key == "Content-Length" {
+                continue
+            }
             if len(values) > 0 {
                 headers[key] = values[0]
             }