Patching

scraper.js

(async () => {

    // ...

    // patch the navigator.deviceMemory and navigator.hardwareConcurrency properties
    await page.evaluateOnNewDocument(() => {

        // redefine navigator.deviceMemory to return a custom value (16GB RAM)
        Object.defineProperty(navigator, 'deviceMemory', {
            value: 16
        });
      
        // redefine navigatorhardwareConcurrency to return a custom value (8 CPU cores)
        Object.defineProperty(navigator, 'hardwareConcurrency', {
            value: 8
        });
    });

    await browser.close();
})();