Option to disable rendering Error page on Client side error

[itssumitrai]

Currently Sveltekit renders an error page, when there is a client side error during CSR. We would like to change this behavior for our production application, as it doesn't result in a good user experience. I know we can customize with our own Error page, but what we'll like is to use the already Server side rendered markup (and disable hydration to prevent CSR) for the user to see.

We'd like an option in Sveltekit to basically disable this default error page rendering experience, would love to get some thoughts or ways to achieve this currently

[david-plugge]

What exactly kills the ux?

[itssumitrai]

Its basically the fact that all the markup was already rendered for the future during SSR. But due to the client error, that entire markup is thrown away and we show a full error page. Thats not a good user experience, what we would like is to use that already rendered markup, that gives the user a full page which they expected and requested.

We can add in some Error message if there is a client error in hooks.client, this results in a much better user experience where user can see all the content and the error message to tell them something went wrong. Instead of a generic Error page which doesn't add to any user value.