force change input field

Hi,

When I select “custom_captcha” type if I fill with jquery the “wpfda-custom-captcha-answer” field with the necessary answer, when I submit it does not perceive the change of content and responde “Incorrect Answer. Please try again.”, there is a way to force to recheck the onchange ? I tried with the classic jquery trigger change but it doesn’t work, any suggestions? at this moment i force to get the value with jquery inside your plugin before check of correct string but this is not the right solution