A system comprises at least one processor having a browser. The processor is configured for: receiving a request to purchase a first item (where a browser performs the receiving), displaying by the browser an indication that the first item has been added to a shopping cart of the user, before receiving an acknowledgement that the request has been received by a server, transmitting the request from the browser to the server, and receiving the acknowledgement of the transmitted request from the server after displaying the indication by the browser.