Puppeteer: PipeTransport is closed.

A message is sent to an already closed pipe transport.

Error message

PipeTransport is closed.

How this error happens

Pipe transport stops being usable when its connection is closed. Reusing a page after disconnecting a pipe-connected browser sends work through a dead connection.

The snippets use the imported puppeteer instance.

const browser = await puppeteer.launch({
    pipe: true,
});

const page = await browser.newPage();

browser.disconnect();

await page.title();

How to fix

Finish page work before closing the owned browser. Keep the connection live for the full task.

const browser = await puppeteer.launch({
    pipe: true,
});

try {
    const page = await browser.newPage();
    const title = await page.title();

    console.log(title);
} finally {
    await browser.close();
}

Things to keep in mind

The public call can report a session-closed or connection-closed error before reaching the pipe guard. A disconnected page cannot reopen that pipe; reconnect deliberately if the browser is externally managed.

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