Input tag with type "date" not working

[Essiga]

Is the following not supported in ultralight:

<input type="date" id="date-picker" name="trip-start" min="1900-01-01" />

The input box is displayed, however there's no way to properly pick a date. Is there any way to accomplish this? If it's not supported which other features are missing in Ultralight is there a comprehensive list somewhere?