puppeteer-extra-plugin-stealth/evasions/navigator.languages/index.js

Stealth mode: Applies various techniques to make detection of headless puppeteer harder.

'use strict'

const PuppeteerExtraPlugin = require('puppeteer-extra-plugin')

/**
 * Pass the Languages Test.
 */
class Plugin extends PuppeteerExtraPlugin {
  constructor (opts = { }) { super(opts) }

  get name () { return 'stealth/evasions/navigator.languages' }

  async onPageCreated (page) {
    await page.evaluateOnNewDocument(() => {
      // Overwrite the `plugins` property to use a custom getter.
      Object.defineProperty(navigator, 'languages', {
        get: () => ['en-US', 'en']
      })
    })
  }
}

module.exports = function (pluginConfig) { return new Plugin(pluginConfig) }