gistfile1.txt

    A <a>plugin</a> is defined in the HTML5 specification. [[!HTML5]]
  
    The <code><<@font-face>></code> Cascading Style Sheets (CSS) rule is defined
    in the CSS Fonts Module Level 3 specification. [[!CSS3-FONTS]]
  
  
    The <code>XMLHttpRequest</code> object is defined in the <code>XMLHttpRequest</code>
    specification. [[!XMLHTTPREQUEST]]
  
  
    The <code>WebSocket</code> object is defined in the <code>WebSocket</code>
    specification. [[!WEBSOCKETS]]
  
  
    The <code>EventSource</code> object is defined in the <code>EventSource</code>
    specification. [[!EVENTSOURCE]]
  
    The Augmented Backus-Naur Form (ABNF) notation used in this document is
    specified in RFC5234. [[!ABNF]]
  
    This document also uses the ABNF extension "#rule" as defined in HTTP
    1.1. [[!HTTP11]]