*%(basename)s:7: RangeError: When style is 'narrow', 'unit' is the only allowed value for the type option.
new Intl.ListFormat("en", {style: 'narrow'})
^
RangeError: When style is 'narrow', 'unit' is the only allowed value for the type option.
    at new ListFormat (<anonymous>)
    at *%(basename)s:7:1