Phantom needs locale headers

[jen-huang]

Currently, when running reporting tests with Phantom, there are no locale headers. This causes an issue with the new i18n module which supports FormatJS syntax. For example this uses FormatJS selectordinal:

export function getOrdinalValue(number) {
  return i18n.translate('xpack.rollupJobs.util.number.ordinal', {
    defaultMessage: '{number, selectordinal, one{#st} two{#nd} few{#rd} other{#th}}',
    values: { number },
  });
}

This code broke reporting tests (even though this code was not touched by those tests) until we switched it back to non-localized strings.

(FYI, Chromium ran the tests with the i18n code just fine.)

[azasypkin]

Hi @jen-huang, are you still experiencing this issue on master? It feels like the same issue that has been fixed in #25465.

[azasypkin]

I believe we've fixed the issue you were observing, there is only one outstanding known Phantom & i18n issue: #27373 (Kibana 6.6 won't be affected, 6.7 isn't affected yet and in 7.0 we'll remove PhantomJS).

So I'm closing this one, but feel free to re-open if you notice anything suspicious in the future.