A non-transitory computer-readable storage medium having a control program stored therein to control an operation of an image formation apparatus having a browser installed therein, said control program causing said image formation apparatus to perform:
- executing said browser and causing a display device to display a designated web page;
- obtaining user information in said executing said browser;
- storing said user information to a memory of said image formation apparatus;
- determining a timing of deleting said user information stored in said memory;
- and
- deleting said user information stored in said memory, at a point of time at which it is determined that said timing of deleting said user information has arrived,
- said determining that said timing of deleting said user information has arrived including:
- determining that said image formation apparatus presents a predefined state allowing said image formation apparatus to end displaying said web page;
- and
- determining that a predefined user operation is done to said image formation apparatus to cause said image formation apparatus to end displaying said web page,
- said deleting said user information including deleting said user information stored in said memory, at an earlier one of a point of time at which it is determined that said predefined state is presented and a point of time at which it is determined that said predefined user operation is performed.