A method and system to display a graphical user interface based on a detected value are disclosed. The system sets a client-side variable to a value responsive to a client device loading data from a server. A graphical user interface is loaded, by the system, onto the client device. The graphical user interface is configured to remain hidden for a predetermined length of time. A detection is made, by the system, that the value of the client-side variable remains unchanged after the predetermined length of time. In some instances, the value of the client-side variable is preserved responsive to the client device loading further data from a further server. The graphical user interface is displayed based on the detection the value of the client-side variable remains unchanged.