Custom 404 error page

Grafana
#1

Hi,
How to custom 404 error page on grafana ?
ex. http://localhost:3000/xxxxx… redirect to http://localhost:3000/errorpage
Thank you.

#2

There is no easy way to do this without modifying the code

#3

@torkel Can you share some hint which code/ file/ location for custom 404 page? I have the specific request from client.