{"action":"created","issue":{"url":"https://api.github.com/repos/aspnet/HttpAbstractions/issues/490","labels_url":"https://api.github.com/repos/aspnet/HttpAbstractions/issues/490/labels{/name}","comments_url":"https://api.github.com/repos/aspnet/HttpAbstractions/issues/490/comments","events_url":"https://api.github.com/repos/aspnet/HttpAbstractions/issues/490/events","html_url":"https://github.com/aspnet/HttpAbstractions/issues/490","id":119133787,"number":490,"title":"IHeaderDictionary should implement IDictionary<string, IEnumerable<string>>","user":{"login":"tenor","id":526262,"avatar_url":"https://avatars.githubusercontent.com/u/526262?v=3","gravatar_id":"","url":"https://api.github.com/users/tenor","html_url":"https://github.com/tenor","followers_url":"https://api.github.com/users/tenor/followers","following_url":"https://api.github.com/users/tenor/following{/other_user}","gists_url":"https://api.github.com/users/tenor/gists{/gist_id}","starred_url":"https://api.github.com/users/tenor/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tenor/subscriptions","organizations_url":"https://api.github.com/users/tenor/orgs","repos_url":"https://api.github.com/users/tenor/repos","events_url":"https://api.github.com/users/tenor/events{/privacy}","received_events_url":"https://api.github.com/users/tenor/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2015-11-27T05:28:24Z","updated_at":"2015-12-08T19:01:05Z","closed_at":"2015-12-08T19:01:05Z","body":"Why does `IHeaderDictionary` implement `IDictionary<string, StringValues>`? \r\n\r\nI see that `StringValues` is implicitly convertible from `string[]`, but that means the developer is forced to use either `StringValues` or `string[]` when setting headers.\r\n\r\nI propose that `IHeaderDictionary` implement `IDictionary<string, IEnumerable<string>>` and have the default `HeaderDictionary` class use `StringValues` internally to store values."},"comment":{"url":"https://api.github.com/repos/aspnet/HttpAbstractions/issues/comments/162982649","html_url":"https://github.com/aspnet/HttpAbstractions/issues/490#issuecomment-162982649","issue_url":"https://api.github.com/repos/aspnet/HttpAbstractions/issues/490","id":162982649,"user":{"login":"muratg","id":1808428,"avatar_url":"https://avatars.githubusercontent.com/u/1808428?v=3","gravatar_id":"","url":"https://api.github.com/users/muratg","html_url":"https://github.com/muratg","followers_url":"https://api.github.com/users/muratg/followers","following_url":"https://api.github.com/users/muratg/following{/other_user}","gists_url":"https://api.github.com/users/muratg/gists{/gist_id}","starred_url":"https://api.github.com/users/muratg/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/muratg/subscriptions","organizations_url":"https://api.github.com/users/muratg/orgs","repos_url":"https://api.github.com/users/muratg/repos","events_url":"https://api.github.com/users/muratg/events{/privacy}","received_events_url":"https://api.github.com/users/muratg/received_events","type":"User","site_admin":false},"created_at":"2015-12-08T19:01:05Z","updated_at":"2015-12-08T19:01:05Z","body":"As @davidfowl says, this will not change for V1.  Closing this.\r\n"}}