A form is submitted (files attached), the submit button gets disabled, then the user realizes some mistake and suddenly cancels the page. He is stuck on the page without the ability of submitting his data.
Is there an event to listen, which generated when the user cancels the form submit? This should lead a re-enabled submit button. The keyup
event (for the Esc key) is not enough, since the user can click on the browser's cancel button.