Is there a way to edit the error page at the start when javascript is disabled?

Hey there, this is the error on start I'm talking about:

Is there a way to add something like imprint or privacy links to this page? I can't talk about other countries but in germany this is legally required.

For example if you want to develop web apps that can be accessed with a link and then take up the entire page these links need to be placed directly inside of the app.