[Notice of support for Chrome version upgrade

We are currently experiencing some cases of no grades for videos, quizzes, tests, web pages, and insect-eating materials in chrome. We apologize for any inconvenience this may cause you. Specifically, it seems that the latest version of Chrome, 73.0.3683.103, has changed the specifications of the browser in the part related to data communication when the X button on the teaching material screen is pressed. If you are using a browser other than Chrome (Edge, Firefox, safari, IE11), you will not experience this problem and can use the system as usual. If you need to learn quickly, please use other browsers. We will take urgent action, but it may take a while to complete. Thank you for your understanding and patience.