fix: set browser preferences correctly

[Junyan]

reference:

• https://chromium.googlesource.com/chromium/src/+/refs/heads/main/chrome/test/chromedriver/chrome_launcher.cc, method: PrepareUserDataDir
• https://chromium.googlesource.com/chromium/src/+/refs/heads/main/chrome/common/chrome_constants.cc, constants: kInitialProfile, kPreferencesFilename

[paulirish]

@Junyan FYI #247 (comment)

have you used the pref file? (we haven't)

[Junyan]

@paulirish

create a temporary Chrome data directory and create a 'Preferences' file

mktemp -d
# return /var/folders/15/d7cwhpnj6r939vbh_6tch9dc0000gp/T/tmp.LzAXgbHU

mkdir /var/folders/15/d7cwhpnj6r939vbh_6tch9dc0000gp/T/tmp.LzAXgbHU/Default

echo '{"intl":{"selected_languages":"zh-CN,zh,zh-HK,en"}}' > /var/folders/15/d7cwhpnj6r939vbh_6tch9dc0000gp/T/tmp.LzAXgbHU/Default/Preferences

open Chrome

/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --user-data-dir=/var/folders/15/d7cwhpnj6r939vbh_6tch9dc0000gp/T/tmp.LzAXgbHU

enter the script in the Chrome Console panel

console.log(window.navigator.languages)
// return ['zh-CN', 'zh', 'zh-HK', 'en']

[paulirish]

Yeah this does seem to work! :)