Tweak: call start_accept first once async_accept succeeded

Author: lxrite

src/http_proxy_client.cpp

@@ -54,9 +54,9 @@ void http_proxy_client::start_accept()
     auto socket = std::make_shared<boost::asio::ip::tcp::socket>(this->acceptor.get_io_service());
     this->acceptor.async_accept(*socket, [socket, this](const boost::system::error_code& error) {
         if (!error) {
+            this->start_accept();
             auto connection = http_proxy_client_connection::create(std::move(*socket));
             connection->start();
-            this->start_accept();
         }
     });
 }