Ladda button and validator

Hello, I'm working with Ladda buttons for my ASP.Net webforms application. So far they are working perfectly with one only detail.

Suppose that I have a textbox with one validator. I also have a button which will implement the Ladda appearance when clicked. Suppose that I click the button and the validator triggers responding that the textbox is invalid. In this case the the button continues to display the spinner.

Any Idea on how to approach that scenario specifically for ASP.Net webforms will be appreciated.

thank you in advance

Adrian