Unknown key: '{value}'

Error

Unknown key: "${key}"

What it means

Puppeteer raised this from its input automation code. In practice, it usually means your script reached a browser, page, frame, element, or option state that the API cannot use safely.

How to fix it

• Check the option value against the Puppeteer API documentation for your installed version.
• Normalize user input before passing it to Puppeteer and keep Puppeteer, Chrome, and TypeScript types in sync.

Minimal guard

try {
  // Run the Puppeteer operation that triggers this error.
} catch (error) {
  if (error instanceof Error && error.message.includes("Unknown key: \"")) {
    // Apply the fix above, then retry or fail with a clearer message.
  }
  throw error;
}