I am trying to add validation to email and phone field. I used widget = "phone" but it doesn't have any difference. The user still can store any data they want, no matter whether it's a number or not.  I tried to download Inputmask module to verify the phone number but it still doesn't work and there is no error message showed from the developer tool. Can anyone tell me why it doesn't work?

  <field widget="mask" data-inputmask-alias="phone" name="phone" />

   <field name="mobile" widget="phone"/>

  <field name="email" widget="regex_mask" data-inputmask-regex="[a-zA-Z0-9._%-]+@[a-zA-Z0-9-]+\.[a-zA-Z]{2,4}" context="{'gravatar_image': True}" attrs="{'required': [('user_ids','!=', [])]}"/>