Locale doesn't work some browsers

[thefidanabdulla]

Before you start - checklist

• I followed instructions in documentation written for my React-Calendar version
• I have checked if this bug is not already reported

Description

az-AZ locale doesn't work on following browsers: Chrome, Opera, Brave. I checked another browser like edge it worked.

Steps to reproduce

send to locale prop this keyword: "az-AZ":
and check the browsers which I mentioned above

Expected behavior

I expect the month name in my own language (Sentyabr, Oktyabr)

Actual behavior

It looks like for the M09 or M10.

Additional information

No response

Environment

• Browser (if applicable):
• React-Calendar version:
• React version:

[wojtekmaj]

Unfortunately since React-Calendar i18n depends entirely on browser's support for Intl, there's nothing I can personally do.
However, note that in our README there's Intl polyfill mentioned, and this polyfill actually supports az locale.

Here's how you can add the polyfill:

import React from 'react';
import { render } from 'react-dom';
import App from './app';
+import IntlPolyfill from 'intl';
+import 'intl/locale-data/jsonp/az.js';
+
+if (global.Intl) {
+  Intl.DateTimeFormat = IntlPolyfill.DateTimeFormat;
+} else {
+  global.Intl = IntlPolyfill;
+}

render(
  <App />,
  document.getElementById('react-root'),
);

And boom!

[thefidanabdulla]

Thanks for your attention :)