Puppeteer: Unknown key

The requested keyboard key identifier is unknown to Puppeteer’s CDP or WebDriver BiDi implementation.

Error message

Unknown key: '{value}'

{value} is replaced by the value shown in your error message.

How this error happens

keyboard.press, down and up accept key identifiers, not whole words. submit is not a key name in either CDP or WebDriver BiDi.

The snippets use an open Puppeteer page named page.

await page.keyboard.press(
    "submit"
);

How to fix

Use the actual key identifier, or use type to enter a string of text.

await page.keyboard.press(
    "Enter"
);

Things to keep in mind

This article covers the CDP and BiDi variants of the message. Key support is not identical across protocols; test special keys with the browser you use.

All Puppeteer errors