const {webkit} = require('playwright');
(async () => {
const browser = await webkit.launch();
// Create a new incognito browser context with a proper user agent
const context = await browser.newContext({
userAgent: 'my-user-agent'
});
// Now the page will have the user agent
const page = await context.newPage('https://example.com');
console.log(await page.evaluate(() => navigator.userAgent));
})();