Perfect, thank you! The first part of your answer solved my question. I kept my .click() method and then added the following:
acf.add_filter('validation_complete', function( json, $form ){
if (json.errors) {
showLoadingBlocker(false);
}
return json;
});
I realise I couldn’t do anything exclusively with JS after the form submission had gone through and the page redirected, but all I was really looking for was that kind of JS error handler.
