Numeric Form Validation in IE 11 Odd Functionality

[nader4]

Hello,

I have an issue with scenario 1 below:

Scenario 1: If I type in letters and click off the number input field, my input disappears.
Scenario 2: If I type in numbers and letters, starting with numbers, it automatically throws the invalid number error, even without clicking off the input first.

My question is in scenario 1, is there a way to make it throw the error automatically, as soon as an invalid character is typed in (as seen in scenario 2), instead of the input disappearing altogether? If not, Is there a future upgrade where this would be resolved? Please let me know what steps I can take to resolve this. I have tested this issue in WET version 4.0.32, and it can be replicated on the WET examples page for form validation: https://wet-boew.github.io/v4.0-ci/demos/formvalid/formvalid-en.html

Thank you,

Nader