Day 16: Adding JSONP support to your app

Today we'll see another very simple but useful example of a middleware component, this time to add functionality beyond just basic HTTP functions. JSONP JSONP (JSON-Padding) is a technology to wrap JSON in a JavaScript callback function. This is normally useful when you want to allow your JSON-based content included programatically in the third party websites using HTML script tags. Middleware::JS

[cho45]

JSONP は Cookie 付きでアクセスしてしまうので、必要な部分だけ個別に許可するようにしないとこわい……

[kamawada]

某エロサイトで使ってますよ！＞jsonp middleware

[Yuichirou]

JSONを返すPSGIアプリが、Middleware::JSONPを入れるだけでJSONPに対応! もちろん既存のWebフレームワークとも組み合わせられる。