I have seen this buried in some other topic and reported by a few people and then the subject changed....
Using the date pickers presented on a feed to filter by date range will cause a JS error which leaves the user with a black screen.
The date pickers are (not well supported) rendered by the browser (chrome) when the input type is datetime-local. The key there being local. The rest of the JS is hard coded to a en_us locale.... So I would expect anyone trying to use these filters with a locale that uses a non US format will have this issue.
Needs to retrieve locale and then use code for that locale.
Or, just give us the option to use text input and we can put in the dates in a specified format.