更新 main.go

main.go

@@ -38,6 +38,7 @@ var client = &http.Client{
 				req.Header[key] = val
 			}
 		}
+
 		// S3 重定向时添加必要的头
 		if strings.Contains(req.URL.Host, "amazonaws.com") {
 			req.Header.Set("x-amz-content-sha256", "UNSIGNED-PAYLOAD")
@@ -515,6 +516,9 @@ func sendRequestWithContext(ctx context.Context, method, url string, headers htt
 
 	req.Header = headers
 	
+	// 为可能的 S3 重定向预先添加头
+	req.Header.Set("x-amz-content-sha256", "UNSIGNED-PAYLOAD")
+
 	startTime := time.Now()
 	resp, err := client.Do(req)