Hello Richard @richard-napier1
Apologies for not creating a post already.
We have custom validations for checkboxes , javascript extension table that will validate on click of submit using onSubmit , this prevents page from reload if the entered value is wrong , if the captcha is entered wrong the page goes to reload and the data in the rows of the table(eventhough i am saving the data onBlur of the event), so i want to prevent reload on onSubmit by checking if captcha entered is wrong to preventDefault.
yes i use validate function for custom checkbox
my table is a customLabel mounted

Regards,
Sandeep