Intl.DateTimeFormat(...).resolvedOptions() always return 'short' in timeZoneName #26790
Description
Version: tested for 9.21 and 11.60
Platform: OSX Mojave x86_64
tested with ICU v: '63.1', and without.
quick step to reproduce:
var region1 = new Intl.DateTimeFormat('en-US', { timeZoneName: 'long' });
console.log(`'${region1.resolvedOptions().timeZoneName}' should be equal to 'long'`);
will always return 'short'.
Chrome v72.0 - show's correct value
you can check it quickly in sandbox at MDN
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat