return partial content (because some browsers require this functionality to be present to seek in HTML5 audio or video). Subclassing notes This class is designed to be extensible by subclassing, but because communication to the browser Implementation of the WebSocket protocol. WebSockets [http://dev.w3.org/html5/websockets/] allow for bidirectional communication between the browser and server. WebSockets are response headers can be sent by overriding set_default_headers or prepare. See http://dev.w3.org/html5/websockets/ for details on the JavaScript interface. The protocol is specified at http://tools.ietf

return partial content (because some browsers require this functionality to be present to seek in HTML5 audio or video). Subclassing notes This class is designed to be extensible by subclassing, but because response headers can be sent by overriding set_default_headers or prepare. See http://dev.w3.org/html5/websockets/ for details on the JavaScript interface. The protocol is specified at http://tools.ietf to comfortably fit in memory, but Range support is necessary in some browsers to enable seeking of HTML5 audio and video. • StaticFileHandler now uses longer hashes by default, and uses the same hashes

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示例 21-4: 一个示例 HTML 文件作为响应返回 这是一个极简 HTML5 文档包含一个标题和一小段文本。为了在服务端接收请求时返回它，需 要如示例 21-5 所示修改 handle_connection 来读取 HTML 文件，将其加入到响应的 body 中 并发送：