Formatted weekdays are always in the wrong specified format

[motss]

This could be a regression as such issue has been reported back in year 2015 (#93). But this still apparently a problem when loading the [email protected] on Sauce Labs' os x 10.11/safari@9.

The following screenshot details the problem:-

This affects other locale such as ja-JP (Japanese):

[EduardoRicardez]

One year and this still open? I having the same issue