diff --git a/fetch/api/response/response-stream-with-broken-then.any.js b/fetch/api/response/response-stream-with-broken-then.any.js
new file mode 100644
index 00000000000000..35b984c9f6da1c
--- /dev/null
+++ b/fetch/api/response/response-stream-with-broken-then.any.js
@@ -0,0 +1,75 @@
+// META: script=../resources/utils.js
+
+promise_test(async () => {
+  add_completion_callback(() => delete Object.prototype.then);
+  const hello = new TextEncoder().encode('hello');
+  const bye = new TextEncoder().encode('bye');
+  const rs = new ReadableStream({
+    start(controller) {
+      controller.enqueue(hello);
+      controller.close();
+    }
+  });
+  const resp = new Response(rs);
+  Object.prototype.then = (onFulfilled) => {
+    delete Object.prototype.then;
+    onFulfilled({done: false, value: bye});
+  };
+  const text = await resp.text();
+  assert_equals(text, 'bye', 'The valud should be replaced with "bye".');
+}, 'Inject {done: false, value: bye} via Object.prototype.then.');
+
+promise_test(async (t) => {
+  add_completion_callback(() => delete Object.prototype.then);
+  const hello = new TextEncoder().encode('hello');
+  const rs = new ReadableStream({
+    start(controller) {
+      controller.enqueue(hello);
+      controller.close();
+    }
+  });
+  const resp = new Response(rs);
+  Object.prototype.then = (onFulfilled) => {
+    delete Object.prototype.then;
+    onFulfilled({done: false, value: undefined});
+  };
+  promise_rejects(t, TypeError(), resp.text(),
+      'The value should be replaced with undefined.');
+}, 'Inject {done: false, value: undefined} via Object.prototype.then.');
+
+promise_test(async (t) => {
+  add_completion_callback(() => delete Object.prototype.then);
+  const hello = new TextEncoder().encode('hello');
+  const rs = new ReadableStream({
+    start(controller) {
+      controller.enqueue(hello);
+      controller.close();
+    }
+  });
+  const resp = new Response(rs);
+  Object.prototype.then = (onFulfilled) => {
+    delete Object.prototype.then;
+    onFulfilled(undefined);
+  };
+  promise_rejects(t, TypeError(), resp.text(),
+      'The read result should be replaced with undefined.');
+}, 'Inject undefined via Object.prototype.then.');
+
+promise_test(async (t) => {
+  add_completion_callback(() => delete Object.prototype.then);
+  const hello = new TextEncoder().encode('hello');
+  const rs = new ReadableStream({
+    start(controller) {
+      controller.enqueue(hello);
+      controller.close();
+    }
+  });
+  const resp = new Response(rs);
+  Object.prototype.then = (onFulfilled) => {
+    delete Object.prototype.then;
+    onFulfilled(8.2);
+  };
+  promise_rejects(t, TypeError(), resp.text(),
+      'The read result should be replaced with a number.');
+}, 'Inject 8.2 via Object.prototype.then.');
+