Don't log 404s to console

[Dig-Doug]

Is there a way to catch 404 errors so I can 1) prevent them from being logged in the console and 2) count them for alerting?

I want to stop them from being logged because my server's logs get analyzed for exceptions, e.g.

SvelteKitError: Not found: /web/wp-includes/wlwmanifest.xml
at .resolve2 ( file:///site/build/server/index.js:3414 )
at .resolve ( file:///site/build/server/index.js:3247 )
at .resolve ( file:///site/build/server/chunks/hooks.server-B0Tx0_fk.js:37 )

[EskelCz]

The only way I found is this:
hooks.server.js

export function handleError({ error }) {
  if (!error.message.includes('Not found')) { // Ignore 404 Not Found
    console.error(error.stack)
    return { message: 'Internal Error' }
  }
}

[simonsarris]

Is there no more canonical way than this, @Rich-Harris ? This could really blow up log size on some sites

[Rich-Harris]

Feels like the stack trace is the unnecessary part and we should just omit it for 404s. I think it would be weird to omit the 404s themselves, that feels like something you'd want to know about

[Rich-Harris]

Actually... it appears this is already the case in more recent versions