Unexpected server error

Hello All,

We are using Javascript API to display visualisation in our application. I am facing an issue in which after a specific amount of idle time, around 30 mins, I see the error "unexpected server error" and Once i reload the page the error goes away. Looks like the server session times out at tableau server, however Is there a way I can handle it at the web application end and display some user friendly error like "Session Time out, Please click here to reload the page"

I understand we have a try / catch block to catch the exception, Is there some way where we can use this in the above scenario.

Any, help in this would be really appreciated. Thanks.