Hello,
When attempting to retrieve a citation for DOI 10.3847/2041-8213/abeb1c using content negotiation we are consistently getting a 500 Internal Server Error response. This is the only DOI for which content negotiation is failing for us at the moment and using the polite vs. public API does not seem to make any difference.
> GET /10.3847/2041-8213/abeb1c HTTP/1.1
> User-Agent: curl/7.29.0
> Host: doi.org
> Accept: text/x-bibliography; style=chicago-fullnote-bibliography; locale=en-GB
>
< HTTP/1.1 302 Found
< Date: Mon, 17 Jul 2023 15:22:03 GMT
< Content-Type: text/html;charset=utf-8
< Content-Length: 229
< Connection: keep-alive
< location: https://api.crossref.org/v1/works/10.3847%2F2041-8213%2Fabeb1c/transform
< vary: Accept
...
> GET /v1/works/10.3847%2F2041-8213%2Fabeb1c/transform HTTP/1.1
> User-Agent: curl/7.29.0
> Host: api.crossref.org
> Accept: text/x-bibliography; style=chicago-fullnote-bibliography; locale=en-GB
>
< HTTP/1.1 500 Server Error
< date: Mon, 17 Jul 2023 15:16:41 GMT
< transfer-encoding: chunked
< server: Jetty(9.4.40.v20210413)
< x-ratelimit-limit: 50
< x-ratelimit-interval: 1s
< x-api-pool: public
< x-rate-limit-limit: 50
< x-rate-limit-interval: 1s
< permissions-policy: interest-cohort=()
< connection: close