Unrecognised relations in Content-Type interferes with content negotiation

curl -iH'Accept: application/ld+json' https://csarven.solid.community/public/
HTTP/1.1 200 OK
Content-Type: application/ld+json

curl -iH'Accept: application/ld+json; profile="https://www.w3.org/ns/activitystreams"' https://csarven.solid.community/public/
HTTP/1.1 200 OK
Content-Type: text/turtle

See also:

curl -iH'Accept: application/ld+json; profile=""' https://csarven.solid.community/public/
Content-Type: application/ld+json

curl -iH'Accept: application/ld+json; profile="x"' https://csarven.solid.community/public/
Content-Type: text/turtle

curl -iH'Accept: application/ld+json; x=""' https://csarven.solid.community/public/
Content-Type: application/ld+json

curl -iH'Accept: application/ld+json; x="y"' https://csarven.solid.community/public/
Content-Type: text/turtle

The server should at the very least ignore the relations it can't handle and return application/ld+json, or return 406.

首先针对服务器运行 curl 示例，并比较不受支持的媒体类型参数和空媒体类型参数的内容协商。跟踪选择响应表示形式的请求处理流程；当不受支持的关系被忽略并返回 application/ld+json，或请求收到 406 时，即表示完成。