Negative numbers in edit-text on mobile browser

I’m trying to enter negative numbers into an edit-text field with type set to number on my phone, but my keyboard doesn’t show a minus sign, only a number pad. Is there a field I have to set in the edit text widget to allow it to enter negative numbers?

Perhaps share a minimum piece of code that demonstrates the problem.

The type=number comes from HTML input types and documented here HTML Input Types however in pure html you can specify the range, if you remove the range and RUN the following it is possible to enter negatives

Try this <$edit-text type="number" field=here/>

Unfortunately we can’t pass through other input related parameters.