5 ms·

So is there a default header to say 'I support 103s' or 'here are my extended capabilities'? Or are we just going to have every API ask for 'x-<company>-preload

• colanderman 9y ago
  From [1]: "A client MUST be able to parse one or more 1xx responses received prior to a final response, even if the client does not expect one. A user agent MAY ignore unexpected 1xx responses." They don't need to be requested. Supporting servers will just send them, unsupporting clients will just ignore them (barring the potential security issue with broken HTTP/1.1 implementations which is noted in the 103 spec). [1] https://tools.ietf.org/html/rfc7231#section-6.2 https://tools.ietf.org/html/rfc7231#section-6.2
• xg15 9y ago
  For HTTP 100, there is the Expect: header to indicate capability. I think it would make sense to use it here as well.