Function saveFormBeforeUnload

form-persistence.js:45–48

()

        // If problems persist, we can add listeners on the pagehide event as well.
        let saveForm = () => save(form, config)
        let saveFormBeforeUnload = () => {
            window.removeEventListener('unload', saveForm)
            saveForm()
        }
        window.addEventListener('beforeunload', saveFormBeforeUnload)
        window.addEventListener('unload', saveForm)
        if (!config.saveOnSubmit) {