error Unexpected end of JSON input

[hahn-kev]

there's a whole bunch of traces in our logs with that error, here's an example
https://ui.honeycomb.io/sil-language-forge/environments/prod/datasets/lexbox-sveltekit-client/result/xA8qXQ1BWPh/trace/g9hxXteCjES?fields[]=s_name&fields[]=s_serviceName&span=949d9f7f3d33dd6b

[hahn-kev]

@myieye would you look into this? It's throwing a bunch of errors into our tracing and I suspect it's from checkly since it's every 30 minutes. Looks like it has something to do with attempting to logout but it's hard to tell.

[myieye]

This looks like the relevant issue: sveltejs/kit#10022

I.e. we're getting these errors, because:

• We have routes that don't have load functions
• SvelteKit seems to screw up a bit here and try to invalidate the data for these routes
• The invalidation requests match part of a route, so they don't land in our [catch-all] route, instead the server handle just returns a 404
• The client-side invalidation code expects JSON 💥