diff --git a/proxy/http3/Http3App.cc b/proxy/http3/Http3App.cc
index 1ec6182852a..71b82566ab5 100644
--- a/proxy/http3/Http3App.cc
+++ b/proxy/http3/Http3App.cc
@@ -192,7 +192,7 @@ Http3App::create_uni_stream(QUICStreamId &new_stream_id, Http3StreamType type)
 void
 Http3App::_handle_uni_stream_on_read_ready(int /* event */, VIO *vio)
 {
-  Http3ErrorUPtr error = Http3ErrorUPtr(new Http3NoError());
+  Http3ErrorUPtr error = Http3ErrorUPtr(nullptr);
   Http3StreamType type;
   QUICStreamVCAdapter *adapter = static_cast<QUICStreamVCAdapter *>(vio->vc_server);
   auto it                      = this->_remote_uni_stream_map.find(adapter->stream().id());
@@ -390,7 +390,7 @@ Http3SettingsHandler::handle_frame(std::shared_ptr<const Http3Frame> frame, int3
 
   if (!settings_frame) {
     // make error
-    return Http3ErrorUPtr(new Http3NoError());
+    return Http3ErrorUPtr(nullptr);
   }
 
   if (settings_frame->is_valid()) {
@@ -426,7 +426,7 @@ Http3SettingsHandler::handle_frame(std::shared_ptr<const Http3Frame> frame, int3
     Debug("http3", "SETTINGS_NUM_PLACEHOLDERS: %" PRId64, num_placeholders);
   }
 
-  return Http3ErrorUPtr(new Http3NoError());
+  return Http3ErrorUPtr(nullptr);
 }
 
 //
diff --git a/proxy/http3/Http3FrameCollector.cc b/proxy/http3/Http3FrameCollector.cc
index 1052abd6104..90e2830b05e 100644
--- a/proxy/http3/Http3FrameCollector.cc
+++ b/proxy/http3/Http3FrameCollector.cc
@@ -47,7 +47,7 @@ Http3FrameCollector::on_write_ready(QUICStreamId stream_id, MIOBuffer &writer, s
     all_done &= g->is_done();
   }
 
-  return Http3ErrorUPtr(new Http3NoError());
+  return Http3ErrorUPtr(nullptr);
 }
 
 void
diff --git a/proxy/http3/Http3FrameDispatcher.cc b/proxy/http3/Http3FrameDispatcher.cc
index 039bc60174f..493a76aa9be 100644
--- a/proxy/http3/Http3FrameDispatcher.cc
+++ b/proxy/http3/Http3FrameDispatcher.cc
@@ -44,7 +44,7 @@ Http3ErrorUPtr
 Http3FrameDispatcher::on_read_ready(QUICStreamId stream_id, Http3StreamType stream_type, IOBufferReader &reader, uint64_t &nread)
 {
   std::shared_ptr<const Http3Frame> frame(nullptr);
-  Http3ErrorUPtr error = Http3ErrorUPtr(new Http3NoError());
+  Http3ErrorUPtr error = Http3ErrorUPtr(nullptr);
   nread                = 0;
   uint32_t frame_count = 0;
 
@@ -108,7 +108,7 @@ Http3FrameDispatcher::on_read_ready(QUICStreamId stream_id, Http3StreamType stre
       std::vector<Http3FrameHandler *> handlers = this->_handlers[static_cast<uint8_t>(type)];
       for (auto h : handlers) {
         error = h->handle_frame(frame, frame_count - 1, stream_type);
-        if (error->cls != Http3ErrorClass::NONE) {
+        if (error && error->cls != Http3ErrorClass::NONE) {
           return error;
         }
       }
diff --git a/proxy/http3/Http3HeaderVIOAdaptor.cc b/proxy/http3/Http3HeaderVIOAdaptor.cc
index ffe59c85f37..242b3c63332 100644
--- a/proxy/http3/Http3HeaderVIOAdaptor.cc
+++ b/proxy/http3/Http3HeaderVIOAdaptor.cc
@@ -65,7 +65,7 @@ Http3HeaderVIOAdaptor::handle_frame(std::shared_ptr<const Http3Frame> frame, int
     ink_abort("should not be here");
   }
 
-  return Http3ErrorUPtr(new Http3NoError());
+  return Http3ErrorUPtr(nullptr);
 }
 
 bool
diff --git a/proxy/http3/Http3ProtocolEnforcer.cc b/proxy/http3/Http3ProtocolEnforcer.cc
index b2b64daad68..97a5ba80646 100644
--- a/proxy/http3/Http3ProtocolEnforcer.cc
+++ b/proxy/http3/Http3ProtocolEnforcer.cc
@@ -37,7 +37,7 @@ Http3ProtocolEnforcer::interests()
 Http3ErrorUPtr
 Http3ProtocolEnforcer::handle_frame(std::shared_ptr<const Http3Frame> frame, int32_t frame_seq, Http3StreamType s_type)
 {
-  Http3ErrorUPtr error  = Http3ErrorUPtr(new Http3NoError());
+  Http3ErrorUPtr error  = Http3ErrorUPtr(nullptr);
   Http3FrameType f_type = frame->type();
   if (s_type == Http3StreamType::CONTROL) {
     if (frame_seq == 0 && f_type != Http3FrameType::SETTINGS) {
diff --git a/proxy/http3/Http3StreamDataVIOAdaptor.cc b/proxy/http3/Http3StreamDataVIOAdaptor.cc
index a711a629df1..2ee24df2dca 100644
--- a/proxy/http3/Http3StreamDataVIOAdaptor.cc
+++ b/proxy/http3/Http3StreamDataVIOAdaptor.cc
@@ -48,7 +48,7 @@ Http3StreamDataVIOAdaptor::handle_frame(std::shared_ptr<const Http3Frame> frame,
   this->_buffer->write(dframe->payload(), dframe->payload_length());
   this->_total_data_length += dframe->payload_length();
 
-  return Http3ErrorUPtr(new Http3NoError());
+  return Http3ErrorUPtr(nullptr);
 }
 
 void
diff --git a/proxy/http3/Http3Types.h b/proxy/http3/Http3Types.h
index 2336959ea08..e92064a6cc7 100644
--- a/proxy/http3/Http3Types.h
+++ b/proxy/http3/Http3Types.h
@@ -113,12 +113,6 @@ class Http3Error
     : cls(Http3ErrorClass::APPLICATION), app_error_code(error_code), msg(error_msg){};
 };
 
-class Http3NoError : public Http3Error
-{
-public:
-  Http3NoError() : Http3Error() {}
-};
-
 class Http3ConnectionError : public Http3Error
 {
 public:
@@ -142,6 +136,4 @@ class Http3StreamError : public Http3Error
   Http3Stream *stream;
 };
 
-using Http3ErrorUPtr           = std::unique_ptr<Http3Error>;
-using Http3ConnectionErrorUPtr = std::unique_ptr<Http3ConnectionError>;
-using Http3StreamErrorUPtr     = std::unique_ptr<Http3StreamError>;
+using Http3ErrorUPtr = std::unique_ptr<Http3Error>;
diff --git a/proxy/http3/test/Mock.h b/proxy/http3/test/Mock.h
index f3b923d09e6..a4999e9f8c7 100644
--- a/proxy/http3/test/Mock.h
+++ b/proxy/http3/test/Mock.h
@@ -42,6 +42,6 @@ class Http3MockFrameHandler : public Http3FrameHandler
   handle_frame(std::shared_ptr<const Http3Frame> frame, int32_t /* frame_seq */, Http3StreamType /* s_type */) override
   {
     this->total_frame_received++;
-    return Http3ErrorUPtr(new Http3NoError());
+    return Http3ErrorUPtr(nullptr);
   }
 };
diff --git a/proxy/http3/test/test_Http3FrameDispatcher.cc b/proxy/http3/test/test_Http3FrameDispatcher.cc
index 0987e4e8dd4..4562e24be31 100644
--- a/proxy/http3/test/test_Http3FrameDispatcher.cc
+++ b/proxy/http3/test/test_Http3FrameDispatcher.cc
@@ -47,7 +47,7 @@ TEST_CASE("Http3FrameHandler dispatch", "[http3]")
     MIOBuffer *buf         = new_MIOBuffer(BUFFER_SIZE_INDEX_512);
     IOBufferReader *reader = buf->alloc_reader();
     uint64_t nread         = 0;
-    Http3ErrorUPtr error   = Http3ErrorUPtr(new Http3NoError());
+    Http3ErrorUPtr error   = Http3ErrorUPtr(nullptr);
 
     buf->write(input, sizeof(input));
 
@@ -56,7 +56,7 @@ TEST_CASE("Http3FrameHandler dispatch", "[http3]")
     CHECK(nread == 0);
 
     error = http3FrameDispatcher.on_read_ready(0, Http3StreamType::UNKNOWN, *reader, nread);
-    CHECK(error->app_error_code == Http3ErrorCode::H3_NO_ERROR);
+    CHECK(!error);
     CHECK(handler.total_frame_received == 1);
     CHECK(nread == 12);
   }
@@ -95,7 +95,7 @@ TEST_CASE("control stream tests", "[http3]")
     MIOBuffer *buf         = new_MIOBuffer(BUFFER_SIZE_INDEX_512);
     IOBufferReader *reader = buf->alloc_reader();
     uint64_t nread         = 0;
-    Http3ErrorUPtr error   = Http3ErrorUPtr(new Http3NoError());
+    Http3ErrorUPtr error   = Http3ErrorUPtr(nullptr);
 
     buf->write(input, sizeof(input));
 
@@ -104,6 +104,7 @@ TEST_CASE("control stream tests", "[http3]")
     CHECK(nread == 0);
 
     error = http3FrameDispatcher.on_read_ready(0, Http3StreamType::CONTROL, *reader, nread);
+    REQUIRE(error);
     CHECK(error->app_error_code == Http3ErrorCode::H3_FRAME_UNEXPECTED);
     CHECK(handler.total_frame_received == 1);
     CHECK(nread == sizeof(input));
@@ -135,7 +136,7 @@ TEST_CASE("control stream tests", "[http3]")
     MIOBuffer *buf         = new_MIOBuffer(BUFFER_SIZE_INDEX_512);
     IOBufferReader *reader = buf->alloc_reader();
     uint64_t nread         = 0;
-    Http3ErrorUPtr error   = Http3ErrorUPtr(new Http3NoError());
+    Http3ErrorUPtr error   = Http3ErrorUPtr(nullptr);
 
     buf->write(input, sizeof(input));
 
@@ -144,6 +145,7 @@ TEST_CASE("control stream tests", "[http3]")
     CHECK(nread == 0);
 
     error = http3FrameDispatcher.on_read_ready(0, Http3StreamType::CONTROL, *reader, nread);
+    REQUIRE(error);
     CHECK(error->app_error_code == Http3ErrorCode::H3_MISSING_SETTINGS);
     CHECK(handler.total_frame_received == 0);
     CHECK(nread == 3);
@@ -173,7 +175,7 @@ TEST_CASE("control stream tests", "[http3]")
     MIOBuffer *buf         = new_MIOBuffer(BUFFER_SIZE_INDEX_512);
     IOBufferReader *reader = buf->alloc_reader();
     uint64_t nread         = 0;
-    Http3ErrorUPtr error   = Http3ErrorUPtr(new Http3NoError());
+    Http3ErrorUPtr error   = Http3ErrorUPtr(nullptr);
 
     buf->write(input, sizeof(input));
 
@@ -182,6 +184,7 @@ TEST_CASE("control stream tests", "[http3]")
     CHECK(nread == 0);
 
     error = http3FrameDispatcher.on_read_ready(0, Http3StreamType::CONTROL, *reader, nread);
+    REQUIRE(error);
     CHECK(error->app_error_code == Http3ErrorCode::H3_FRAME_UNEXPECTED);
     CHECK(handler.total_frame_received == 1);
     CHECK(nread == sizeof(input));
@@ -211,7 +214,7 @@ TEST_CASE("control stream tests", "[http3]")
     MIOBuffer *buf         = new_MIOBuffer(BUFFER_SIZE_INDEX_512);
     IOBufferReader *reader = buf->alloc_reader();
     uint64_t nread         = 0;
-    Http3ErrorUPtr error   = Http3ErrorUPtr(new Http3NoError());
+    Http3ErrorUPtr error   = Http3ErrorUPtr(nullptr);
 
     buf->write(input, sizeof(input));
 
@@ -220,6 +223,7 @@ TEST_CASE("control stream tests", "[http3]")
     CHECK(nread == 0);
 
     error = http3FrameDispatcher.on_read_ready(0, Http3StreamType::CONTROL, *reader, nread);
+    REQUIRE(error);
     CHECK(error->app_error_code == Http3ErrorCode::H3_FRAME_UNEXPECTED);
     CHECK(handler.total_frame_received == 1);
     CHECK(nread == sizeof(input));
@@ -249,7 +253,7 @@ TEST_CASE("control stream tests", "[http3]")
     MIOBuffer *buf         = new_MIOBuffer(BUFFER_SIZE_INDEX_512);
     IOBufferReader *reader = buf->alloc_reader();
     uint64_t nread         = 0;
-    Http3ErrorUPtr error   = Http3ErrorUPtr(new Http3NoError());
+    Http3ErrorUPtr error   = Http3ErrorUPtr(nullptr);
 
     buf->write(input, sizeof(input));
 
@@ -258,6 +262,7 @@ TEST_CASE("control stream tests", "[http3]")
     CHECK(nread == 0);
 
     error = http3FrameDispatcher.on_read_ready(0, Http3StreamType::CONTROL, *reader, nread);
+    REQUIRE(error);
     CHECK(error->app_error_code == Http3ErrorCode::H3_FRAME_UNEXPECTED);
     CHECK(handler.total_frame_received == 1);
     CHECK(nread == sizeof(input));
@@ -277,13 +282,13 @@ TEST_CASE("ignore unknown frames", "[http3]")
     MIOBuffer *buf         = new_MIOBuffer(BUFFER_SIZE_INDEX_512);
     IOBufferReader *reader = buf->alloc_reader();
     uint64_t nread         = 0;
-    Http3ErrorUPtr error   = Http3ErrorUPtr(new Http3NoError());
+    Http3ErrorUPtr error   = Http3ErrorUPtr(nullptr);
 
     buf->write(input, sizeof(input));
 
     CHECK(nread == 0);
     error = http3FrameDispatcher.on_read_ready(0, Http3StreamType::UNKNOWN, *reader, nread);
-    CHECK(error->app_error_code == Http3ErrorCode::H3_NO_ERROR);
+    CHECK(!error);
     CHECK(nread == 0);
   }
 }
@@ -308,7 +313,7 @@ TEST_CASE("Reserved frame type not allowed", "[http3]")
     MIOBuffer *buf         = new_MIOBuffer(BUFFER_SIZE_INDEX_512);
     IOBufferReader *reader = buf->alloc_reader();
     uint64_t nread         = 0;
-    Http3ErrorUPtr error   = Http3ErrorUPtr(new Http3NoError());
+    Http3ErrorUPtr error   = Http3ErrorUPtr(nullptr);
 
     buf->write(input, sizeof(input));
 
@@ -317,6 +322,7 @@ TEST_CASE("Reserved frame type not allowed", "[http3]")
     CHECK(nread == 0);
 
     error = http3FrameDispatcher.on_read_ready(0, Http3StreamType::UNKNOWN, *reader, nread);
+    REQUIRE(error);
     CHECK(error->app_error_code == Http3ErrorCode::H3_FRAME_UNEXPECTED);
     CHECK(handler.total_frame_received == 0);
     CHECK(nread == 12);