源码快照 @ 2026-09-01 (source-only, 剔除非源码素材)

packages/runtime/src/http-response.ts

@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ * A transport that rewrites a response body must not carry over the headers
+ * that described the old one. `content-length` becomes a lie the moment the
+ * body is re-encoded, and `content-encoding` names a compression that `fetch`
+ * has already undone. Both belong to the framing of the response we replaced,
+ * not to the one we are handing on.
+ */
+export function responseWithBody(response: Response, body: BodyInit): Response {
+  const headers = new Headers(response.headers);
+  headers.delete('content-encoding');
+  headers.delete('content-length');
+  return new Response(body, {
+    status: response.status,
+    statusText: response.statusText,
+    headers,
+  });
+}