Prevent Contact Form 7 - Multiple Submissions

cf7-extra.js

// Prevent Multiple Clicks on Contact Form 7 Submissions
jQuery(document).on('click', '.wpcf7-submit', function(e){
     if( jQuery('.ajax-loader').hasClass('is-active') ) {
          e.preventDefault();
          return false;
     }
});

This solution seems to be no longer effective right now. I guess it's because the .ajax-loader never gets the class "is-active". If someone is facing the same issue, maybe these tweaks helps:

// Prevent Multiple Clicks on Contact Form 7 Submissions
jQuery(document).on('click', '.wpcf7-submit', function(e){
    if( jQuery('.wpcf7-form').hasClass('submitting') ) {
         e.preventDefault();
         return false;
    }
});

It's the same logic but I'm relying on the class that CF7 adds to the form, "submitting" (that's basically there until the spinner disappears).