diff --git a/src/valdi_modules/src/cpp/valdi_http/HTTPRequestManagerModuleFactory.cpp b/src/valdi_modules/src/cpp/valdi_http/HTTPRequestManagerModuleFactory.cpp
index b127bbe3..35a330f9 100644
--- a/src/valdi_modules/src/cpp/valdi_http/HTTPRequestManagerModuleFactory.cpp
+++ b/src/valdi_modules/src/cpp/valdi_http/HTTPRequestManagerModuleFactory.cpp
@@ -96,15 +96,11 @@ Value HTTPRequestManagerModuleFactory::loadModule() {
                     std::move(url), std::move(method), std::move(headers), std::move(convertedBody), priority),
                 requestCompletion);
 
-            Value out;
-            out.setMapValue("cancel",
-                            Value(makeShared<ValueFunctionWithCallable>(
-                                [cancellable](const ValueFunctionCallContext& /*callContext*/) -> Value {
-                                    cancellable->cancel();
-                                    return Value::undefined();
-                                })));
-
-            return out;
+            return Value(makeShared<ValueFunctionWithCallable>(
+                [cancellable](const ValueFunctionCallContext& /*callContext*/) -> Value {
+                    cancellable->cancel();
+                    return Value::undefined();
+                }));
         })));
 
     return out;
diff --git a/valdi/BUILD.bazel b/valdi/BUILD.bazel
index 39fc87a1..92f2daf7 100644
--- a/valdi/BUILD.bazel
+++ b/valdi/BUILD.bazel
@@ -823,6 +823,7 @@ valdi_test(
     deps = [
         ":test_utils",
         ":valdi_runtime_with_vm",
+        "//src/valdi_modules/src/cpp/valdi_http:valdi_http_cpp",
         "//src/valdi_modules/src/valdi/persistence:persistence_native",
         "//src/valdi_modules/src/valdi/valdi_core:valdi_core_native",
         "//src/valdi_modules/src/valdi/valdi_protobuf:valdi_protobuf_native",
diff --git a/valdi/test/integration/HTTPClientCancel_tests.cpp b/valdi/test/integration/HTTPClientCancel_tests.cpp
new file mode 100644
index 00000000..3c430fca
--- /dev/null
+++ b/valdi/test/integration/HTTPClientCancel_tests.cpp
@@ -0,0 +1,58 @@
+#include "RequestManagerMock.hpp"
+#include "valdi/runtime/Runtime.hpp"
+#include "valdi_core/cpp/Utils/ByteBuffer.hpp"
+
+#include "JSBridgeTestFixture.hpp"
+#include "RuntimeTestsUtils.hpp"
+#include "gtest/gtest.h"
+
+using namespace Valdi;
+
+namespace ValdiTest {
+
+class HTTPClientCancelFixture : public JSBridgeTestFixture {
+protected:
+    void SetUp() override {
+        wrapper = RuntimeWrapper(getJsBridge(), TSNMode::Disabled);
+    }
+
+    void TearDown() override {
+        wrapper.teardown();
+    }
+
+    RuntimeWrapper wrapper;
+};
+
+// The native performRequest must return a bare cancel function (matching NativeHTTPClient.d.ts), so
+// HTTPClient.ts's `() => cancelFn?.()` can call it. Before the fix the C++ factory returns a
+// { cancel: fn } object, so `typeof` is "object" and calling it throws "cancel is not a function".
+TEST_P(HTTPClientCancelFixture, performRequestCancelHandleIsCallable) {
+    auto requestManager = Valdi::makeShared<RequestManagerMock>(*wrapper.logger);
+    wrapper.runtimeManager->setRequestManager(requestManager);
+    // Give the request a clean completion so the mock's async queue doesn't surface a
+    // "No mocked response" error if it runs before the synchronous cancel() below.
+    requestManager->addMockedResponse(STRING_LITERAL("http://localhost/"), STRING_LITERAL("GET"), BytesView());
+
+    std::string js =
+        "var m = global.require('valdi_http/src/NativeHTTPClient');"
+        "var cancel = m.performRequest("
+        "  { url: 'http://localhost/', method: 'GET', headers: {} }, function () {});"
+        "var kind = typeof cancel;"
+        "cancel();" // nulls the mocked request's completion before the mock queue can fire it
+        "return kind;";
+
+    auto result = wrapper.runtime->getJavaScriptRuntime()->evaluateScript(
+        makeShared<ByteBuffer>(js)->toBytesView(), STRING_LITERAL("http_cancel_test.js"));
+
+    ASSERT_TRUE(result) << result.description();
+    ASSERT_EQ("function", result.value().toString());
+}
+
+INSTANTIATE_TEST_SUITE_P(HTTPClientCancelTests,
+                         HTTPClientCancelFixture,
+                         ::testing::Values(JavaScriptEngineTestCase::Hermes,
+                                           JavaScriptEngineTestCase::QuickJS,
+                                           JavaScriptEngineTestCase::JSCore),
+                         PrintJavaScriptEngineType());
+
+} // namespace ValdiTest