/**
     * On submitting the form the OffCanvas shall open, the product has to be posted
     * against the storefront api and after that the current cart template needs to
     * be fetched and shown inside the OffCanvas
     * @param {Event} e
     * @private
     */
    _onFormSubmit(e) {
        e.preventDefault();

        const form = e.target;
        const requestUrl = DomAccess.getAttribute(form, 'action');

        // Open the OffCanvas first
        OffCanvas.open(LoadingIndicator.getTemplate(), () => {
            // Fire POST request for adding the product to cart
            this.client.post(requestUrl.toLowerCase(), this._convertFormDataToJSON(new FormData(form)), () => {
                // Update the CartWidget in the header
                CartWidget.fetch();
                // Fetch the current cart template and replace the OffCanvas content
                this.client.get(window.router["frontend.cart.detail"], (response) => {
                    OffCanvas.setContent(response);
                    this._registerRemoveProductTriggerEvents();
                });
            });
        }, CART_MINI_POSITION);
    }