Image forming apparatus and screen rendering method

An image forming apparatus, comprising:

• a controller circuitry configured to operate as a first web server and a first web browser communicable with the first web server;
• a display device;
• a communication interface communicably connected to an information processing apparatus, the information processing apparatus being configured to operate as a second web server and a second web browser communicable with the second web server, the second web browser including a script, the script including a URL and a command, the URL indicating a position of screen data including a child frame in the second web server, the command requesting to access the URL and acquire and display the screen data;
• and
• a memory,
• the first web server being configured to
• receive the script from the information processing apparatus via the communication interface,
• store the script in the memory, and
• the first web browser being configured to
• query the first web server whether or not the script is newly stored by polling,
• when the first web browser receives a response indicating that the script is newly stored from the first web server,
• execute the script to thereby access the URL in the second web server, the URL being included in the script, and receive the screen data including the child frame from the second web server via the communication interface, and
• render the screen data including the child frame and display the screen data on the display device.

A screen rendering method executable by a controller circuitry of an image forming apparatus, the image forming apparatus including

• the controller circuitry configured to operate as a first web server and a first web browser communicable with the first web server,
• a display device,
• a communication interface communicably connected to an information processing apparatus, the information processing apparatus being configured to operate as a second web server and a second web browser communicable with the second web server, the second web browser including a script, the script including a URL and a command, the URL indicating a position of screen data in the second web server, the command requesting to access the URL and acquire and display the screen data, and
• a memory,
• the screen rendering method comprising:
• by the first web server,
• receiving the script from the information processing apparatus via the communication interface;
• storing the script in the memory;
• and
• transmitting an event to the first web browser, the event indicating that the script is stored;
• and
• by the first web browser,
• receiving the event from the first web server;
• acquiring the script from the memory;
• executing the script to thereby access the URL in the second web server, the URL being included in the script, and receiving the screen data from the second web server via the communication interface;
• and
• rendering the received screen data and displaying the screen data on the display device.