@@ -1792,6 +1792,7 @@ function readableStreamPipeTo(
   function forwardChunk() {
     const chunk = pendingChunk;
     pendingChunk = undefined;
+    if (writer[kState].stream === undefined) return;
     writableStreamDefaultWriterWriteWithRequest(writer, chunk, writeTracker);
     pump();
   }
 
@@ -0,0 +1,63 @@
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const { ReadableStream, WritableStream } = require('stream/web');
+
+{
+  let sourceController;
+  let destController;
+
+  const source = new ReadableStream({
+    start(controller) {
+      sourceController = controller;
+    },
+  });
+
+  const dest = new WritableStream({
+    start(controller) {
+      destController = controller;
+    },
+    write() {},
+  });
+
+  assert.rejects(
+    source.pipeTo(dest, { preventCancel: true }),
+    { message: 'destination errored' },
+  ).then(common.mustCall());
+
+  setImmediate(common.mustCall(() => {
+    destController.error(new Error('destination errored'));
+    sourceController.enqueue('chunk');
+  }));
+}
+
+{
+  const ac = new AbortController();
+  let sourceController;
+  const chunks = [];
+
+  const source = new ReadableStream({
+    start(controller) {
+      sourceController = controller;
+    },
+  }, { highWaterMark: 0 });
+
+  const dest = new WritableStream({
+    write: common.mustCall((chunk) => {
+      chunks.push(chunk);
+    }),
+  }, { highWaterMark: 1 });
+
+  assert.rejects(
+    source.pipeTo(dest, { signal: ac.signal }),
+    { name: 'AbortError' },
+  ).then(common.mustCall(() => {
+    assert.deepStrictEqual(chunks, ['chunk']);
+  }));
+
+  setImmediate(common.mustCall(() => {
+    sourceController.enqueue('chunk');
+    ac.abort();
+  }));
+}
Original file line number	Diff line number	Diff line change
`@@ -1792,6 +1792,7 @@ function readableStreamPipeTo(`
`1792`	`1792`	`function forwardChunk() {`
`1793`	`1793`	`const chunk = pendingChunk;`
`1794`	`1794`	`pendingChunk = undefined;`
	`1795`	`+ if (writer[kState].stream === undefined) return;`
`1795`	`1796`	`writableStreamDefaultWriterWriteWithRequest(writer, chunk, writeTracker);`
`1796`	`1797`	`pump();`
`1797`	`1798`	`}`