webform telephone field validation fails I am using webform-8.x-5.0 and created a telephone field with international phone numbers support. Before submitting the form if i enter some number like "+91fdfgdfg45646" it shows "Invalid phone number" (which i am not sure if it is a valid number or not). But when I submit the form it gets submitted. The issue is if it is invalid, the form should not have been submitted. Please suggest a solution. The form should not be submitted if it is invalid number.

Thanks in advance

Image for reference:
The international phone number element is only a client-side enhancement which is using the International Telephone Input library.  

To validate the phone number via server-side validation you would need write custom code and to use a PHP library like https://github.com/giggsey/libphonenumber-for-php