I have an HTML5 date picker <input type="date">
I want people to be able to submit dates in any of these formats:
- YYYY-MM-DD
- YYYY-MM
- YYYY
That is, if they know the full date, they can submit that. If not, just a partial date is fine. This is allowed in ISO8601 parsing rules for reduced accuracy.
At the moment, if the input is partial - like "2020-04" - Firefox treats it as null and doesn't submit anything. Chrome shows a validation error.
Date input does not accept the pattern attribute - so I can't use that.
Is there any way to tell the browser that a partial timestamp is allowed?