Puppeteer: Unknown value for options.waitUntil:

waitUntil contains a value absent from Puppeteer’s lifecycle mapping.

Error message

Unknown value for options.waitUntil:

How this error happens

waitUntil accepts Puppeteer’s lifecycle names. ready is an application concept, not a supported navigation event.

The snippets use an open Puppeteer page named page.

await page.goto(
    "https://example.com",
    {
        waitUntil: "ready",
    }
);

How to fix

Choose a supported lifecycle event, then wait for an application-specific selector if needed.

await page.goto(
    "https://example.com",
    {
        waitUntil: "domcontentloaded",
    }
);

Things to keep in mind

The supported lifecycle values are load, domcontentloaded, networkidle0 and networkidle2. Network idleness does not prove that application data is ready.

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