diff --git a/fuzzing/MockedEchoServer.cpp b/fuzzing/MockedEchoServer.cpp
index c7cd5d7..d547d15 100644
--- a/fuzzing/MockedEchoServer.cpp
+++ b/fuzzing/MockedEchoServer.cpp
@@ -23,10 +23,20 @@ extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) {
         .idleTimeout = 10,
         /* Handlers */
         .open = [](auto *ws, auto *req) {
-
+            if (req->getHeader("close_me").length()) {
+                ws->close();
+            } else if (req->getHeader("end_me").length()) {
+                ws->end(1006);
+            }
         },
         .message = [](auto *ws, std::string_view message, uWS::OpCode opCode) {
-            ws->send(message, opCode);
+            if (message.length() && message[0] == 'C') {
+                ws->close();
+            } else if (message.length() && message[0] == 'E') {
+                ws->end(1006);
+            } else {
+                ws->send(message, opCode, true);
+            }
         },
         .drain = [](auto *ws) {
             /* Check getBufferedAmount here */