更新 proxy/handler.go

proxy/handler.go

@@ -267,6 +267,10 @@ func (h *ProxyHandler) sendResponse(w http.ResponseWriter, resp *http.Response,
 
 func (h *ProxyHandler) serveCached(w http.ResponseWriter, entry *cache.CacheEntry) {
     for key, value := range entry.Headers {
+        // 跳过这些头，让 Go 自动处理
+        if key == "Content-Encoding" || key == "Content-Length" {
+            continue
+        }
         w.Header().Set(key, value)
     }