diff --git a/src/proxy/tinymitm/proxy.cpp b/src/proxy/tinymitm/proxy.cpp
index 63be583..b11f78c 100644
--- a/src/proxy/tinymitm/proxy.cpp
+++ b/src/proxy/tinymitm/proxy.cpp
@@ -387,6 +387,7 @@ void TinyMITMProxy::handleClient(SOCKET clientSocket)
     */
     HttpStream clientStream, serverStream;
     std::deque<std::string> pendingUrls;
+    std::deque<std::string> inFlightUrls;
     bool tunnelMode = false;
 
     while (_running)
@@ -523,6 +524,7 @@ void TinyMITMProxy::handleClient(SOCKET clientSocket)
                             }
                             else
                             {
+                                inFlightUrls.push_back(url);
                                 removeHeader(headers, "Transfer-Encoding");
                                 removeHeader(headers, "Content-Length");
                                 headers.insert(headers.size() - 2,