fix proxied response in llm manager

cpp/llm_manager.cpp

@@ -306,7 +306,6 @@ struct ProxiedGetResult {
   int status = 500;
   std::string body;
   std::string content_type = "text/plain; charset=utf-8";
-  std::string content_encoding;
 };
 
 static ProxiedGetResult forward_get_to_worker(const WorkerInfo &worker,
@@ -317,10 +316,11 @@ static ProxiedGetResult forward_get_to_worker(const WorkerInfo &worker,
   auto const results = resolver.resolve("127.0.0.1", std::to_string(worker.port));
   stream.connect(results);
 
-    http::request<http::string_body> req{http::verb::get, target, 11};
-    req.set(http::field::host, "127.0.0.1");
-    req.set(http::field::user_agent, "llm-manager");
-    http::write(stream, req);
+  http::request<http::string_body> req{http::verb::get, target, 11};
+  req.set(http::field::host, "127.0.0.1");
+  req.set(http::field::user_agent, "llm-manager");
+  req.set(http::field::accept_encoding, "identity");
+  http::write(stream, req);
 
   beast::flat_buffer buffer;
   http::response<http::string_body> res;
@@ -333,9 +333,6 @@ static ProxiedGetResult forward_get_to_worker(const WorkerInfo &worker,
   if (res.base().find(http::field::content_type) != res.base().end()) {
     out.content_type = res.base()[http::field::content_type].to_string();
   }
-  if (res.base().find(http::field::content_encoding) != res.base().end()) {
-    out.content_encoding = res.base()[http::field::content_encoding].to_string();
-  }
   return out;
 }
 
@@ -436,9 +433,6 @@ http::response<http::string_body> handle_request(
       http::response<http::string_body> res{
           static_cast<http::status>(upstream.status), req.version()};
       res.set(http::field::content_type, upstream.content_type);
-      if (!upstream.content_encoding.empty()) {
-        res.set(http::field::content_encoding, upstream.content_encoding);
-      }
       res.set(http::field::server, "llm-manager");
       res.keep_alive(req.keep_alive());
       res.body() = upstream.body;