curl -I-ing prod site results in error 500, but can't replicate locally and site works just fine

[bananabrann]

If curl -I "https://tv.brannan.cloud" tv.brannan.cloud, I get the following

HTTP/2 500
age: 0
cache-control: public, max-age=0, must-revalidate
content-type: text/plain; charset=utf-8
date: Sat, 17 Jun 2023 15:41:14 GMT
etag: "1ydayx4"
link: <./_app/immutable/assets/0.02b639f4.css>; rel="preload";as="style"; nopush, <./_app/immutable/assets/2.1e642298.css>; rel="preload";as="style"; nopush, <./_app/immutable/entry/start.cc5c57bf.js>; rel="modulepreload"; nopush, <./_app/immutable/chunks/index.e48d1ded.js>; rel="modulepreload"; nopush, <./_app/immutable/chunks/singletons.d96c7113.js>; rel="modulepreload"; nopush, <./_app/immutable/chunks/environment.19a4e71c.js>; rel="modulepreload"; nopush, <./_app/immutable/chunks/parse.bee59afc.js>; rel="modulepreload"; nopush, <./_app/immutable/entry/app.d4eeb8c4.js>; rel="modulepreload"; nopush, <./_app/immutable/nodes/0.e2dc5269.js>; rel="modulepreload"; nopush, <./_app/immutable/nodes/2.45cc9658.js>; rel="modulepreload"; nopush
server: Vercel
strict-transport-security: max-age=63072000; includeSubDomains; preload
x-robots-tag: noindex
x-sveltekit-page: true
x-vercel-cache: MISS
x-vercel-error: INTERNAL_SERVER_ERROR
x-vercel-execution-region: iad1
x-vercel-id: cle1::iad1::pvqjt-1687016474435-a0787af9579c
content-length: 51

If I do the same command, but on npm run preview locally, it works just fine

HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
content-length: 3329
content-type: text/html
etag: "1ydayx4"
link: <./_app/immutable/assets/0.02b639f4.css>; rel="preload";as="style"; nopush, <./_app/immutable/assets/2.1e642298.css>; rel="preload";as="style"; nopush, <./_app/immutable/entry/start.cc5c57bf.js>; rel="modulepreload"; nopush, <./_app/immutable/chunks/index.e48d1ded.js>; rel="modulepreload"; nopush, <./_app/immutable/chunks/singletons.d96c7113.js>; rel="modulepreload"; nopush, <./_app/immutable/chunks/environment.19a4e71c.js>; rel="modulepreload"; nopush, <./_app/immutable/chunks/parse.bee59afc.js>; rel="modulepreload"; nopush, <./_app/immutable/entry/app.d4eeb8c4.js>; rel="modulepreload"; nopush, <./_app/immutable/nodes/0.e2dc5269.js>; rel="modulepreload"; nopush, <./_app/immutable/nodes/2.45cc9658.js>; rel="modulepreload"; nopush
x-sveltekit-page: true
Date: Sun, 18 Jun 2023 15:21:28 GMT
Connection: keep-alive
Keep-Alive: timeout=5

This is bad because I'd like shields.io (or others) to ping this site for determining if it's online or not

---

I saw #8039 that I thought was related, so my best guess is that I'm referencing something on my file system that when my app moves to Vercel no longer exists because of edge functions. However, whenever I tried removing what I thought was the culprit, the same issue happens when curl -I-ing the dev site.

I've also read the docs about prerendering, but I am not able to do that because I'm using actions on my only +page.server.ts file.

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The site is fairly simple, and I'm new to SvelteKit, so the error is probably something simple that I'm not doing. I'm at a dead-end of what more to do, so any help would be appreciated. Thank you! 😀

Repo: https://github.com/bananabrann/tv.brannan.cloud

[bananabrann]

I'm still wondering about this... I saw #3566, I wonder if this could be a bug with adapter-vercel?