Get current locale of Chrome

Update:

As of Sept 2021 Chrome has pretty extensive support for the Intl library.

function getClientLocale() {  if (typeof Intl !== 'undefined') {    try {      return Intl.NumberFormat().resolvedOptions().locale;    } catch (err) {      console.error("Cannot get locale from Intl")    }  }}

Otherwise you can fallback to the window.navigator object:

Firefox and Chrome have a languages array on the navigator object. Normally the first element in that array is the users chosen locale (normally inherited from the OS settings)

var language;if (window.navigator.languages) {    language = window.navigator.languages[0];} else {    language = window.navigator.userLanguage || window.navigator.language;}

The navigator.languages array in chrome for me is ["en-GB", "en-US", "en"] whereas navigator.language = "en-US", slightly different but important

In the latest versions of Chrome browser,
it var language = window.navigator.userLanguage || window.navigator.language; returns 'fr-FR'.

If you are still facing the same issue, you can try var language = navigator.language;