LocalizationManager resources not available in developer visual

[ChrisWilliams]

Do you have any idea if LocalizationManager resources will ever be available when running pbiviz start?  I have resources defined that have templating parameters for data substitution.  They don't work at all when I'm building the app, which means I really can't do localization.

For example, here's a templating string that I use for displaying dates:

en-US

"DateYMD": "{month} {day}, {year}",

ja-JP:

"DateYMD": "{year}年{month}月{day}日",

Obviously I format through the bracketed values to display dates for my supported languages, but I can't do this during development which is a real pain.  I know I can use moment.js for dates, but this is just one of many examples, most of which are not date-related.

Any news on this or recommended workarounds?