Domain-level redirect in _redirects succeeds, but in netlify.toml fails with 500 error

[williamthorsen]

Netlify site name: skypilot.netlify.app

I created this netlify.toml file to redirect my site’s default subdomain to the primary domain:

[[redirects]]
from = "https://skypilot.netlify.app/*"
to = "https://www.skypilot.dev/:splat"
status = "301"
force = true

I’ve used the same redirect syntax in other sites without any issues. And the deploy summaries for this site always report

1 redirect rule processed
All redirect rules deployed without errors

But any deploy using the config fails with a 500 Internal Server Error. This happens for both deploy previews (e.g., 60fb8d8bf751300007989b01--skypilot.netlify.app) and branch deploys (next--skypilot.netlify.app). Because of the failures, I haven’t attempted to use it in the production branch.)

Here’s a sample request:

curl --verbose https://60fb8d8bf751300007989b01--skypilot.netlify.app

*   Trying 54.241.246.27...
* TCP_NODELAY set
* Connected to 60fb8d8bf751300007989b01--skypilot.netlify.app (54.241.246.27) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/cert.pem
  CApath: none
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-ECDSA-AES256-GCM-SHA384
* ALPN, server accepted to use h2
* Server certificate:
*  subject: C=US; ST=California; L=San Francisco; O=Netlify, Inc; CN=*.netlify.app
*  start date: Mar  9 00:00:00 2021 GMT
*  expire date: Mar  1 23:59:59 2022 GMT
*  subjectAltName: host "60fb8d8bf751300007989b01--skypilot.netlify.app" matched cert's "*.netlify.app"
*  issuer: C=US; O=DigiCert Inc; CN=DigiCert TLS Hybrid ECC SHA384 2020 CA1
*  SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0x7f821400f800)
> GET / HTTP/2
> Host: 60fb8d8bf751300007989b01--skypilot.netlify.app
> User-Agent: curl/7.64.1
> Accept: */*
> 
* Connection state changed (MAX_CONCURRENT_STREAMS == 4294967295)!
< HTTP/2 500 
< content-length: 0
< date: Sat, 24 Jul 2021 15:43:12 GMT
< server: Netlify
< x-nf-request-id: 01FBCJYJ6M6G2WF4G7N9T8KAE6
< age: 0
< 
* Connection #0 to host 60fb8d8bf751300007989b01--skypilot.netlify.app left intact
* Closing connection 0

The same redirect succeeds if used in a _redirects file:

https://skypilot.netlify.app/* https://www.skypilot.dev/:splat 301!

Can you tell me why the redirect fails when configured in netlify.toml – and how to fix it?

[hillary]

Hey there, @williamthorsen

Thanks so much for reaching out and for writing such a detailed post. I took a look in the Forums, and it seems as though these two threads may have some clues to help you get on the right track:

Netlify Started Returning 500 errors on redirect

One of my redirects started randomly failing and returning 500 from netlify: ❯ curl -I "https://aec.works/auth/linkedin" HTTP/2 500 server: Netlify date: Mon, 05 Jul 2021 20:30:53 GMT age: 0 x-nf-request-id: 3f313c08-50a6-4bf3-8819-7d19391fdbc4 Redirect Config: netlify.tml: App: I looked at similar questions here but I am not sure it’s the same issue https://answers.netlify.com/t/redirect-randomly-returns-500/39958 Seems like it could be an error on my end possibly related to my auth …

Netlify.toml redirects not working

After deploy I can’t seem to verify my redirects written with a netlify.toml file. I have this from the deploy summary: 4 redirect rules processed All redirect rules deployed without errors. Yet a quick check visiting a redirected url does not result in a 301, but a 200 E.g. [[redirects]] from = “/?url=bybarner.dk&id=1184” to = “/booking” status = 301 This is how I copy the toml file: nuxt generate && cp netlify.toml dist

Additionally, this Support Guide is a good port of call for debugging redirects issues:

[Support Guide] Making redirects work for you - troubleshooting and debugging

Last checked by Netlify Support Team: September 2023. Introduction You’ve put blood, sweat and tears into building an incredible static site with all the bells and whistles. However, you’ve configured some redirect rules and you’ve come unstuck… they don’t appear to be working! Ensure you’ve followed the correct guidance Our redirects and rewrites document covers a broad range of use cases, from status codes to proxying another service and everything in between. Ensure you’re using the correc…

Can you take a look at those resources and walk through the suggestions? If at the end of that you are still encountering your error, please let us know and I can loop in a Support Engineer

[coelmay]

@williamthorsen

[[redirects]]
from = "https://skypilot.netlify.app/*"
to = "https://www.skypilot.dev/:splat"
status = "301"
force = true

Try changing it to

[[redirects]]
  from = "https://skypilot.netlify.app/*"
  to = "https://www.skypilot.dev/:splat"
  status = 301
  force = true

[williamthorsen]

Thanks for finding the solution: status has to be a numeric value, not a string.