The Web Socket protocol
by marcoThe Web Sockets protocol enables two-way communication between a user agent running untrusted code running in a controlled environment to a remote host that has opted-in to communications from that code.
The Web Sockets protocol enables two-way communication between a user agent running untrusted code running in a controlled environment to a remote host that has opted-in to communications from that code.
We considered RDFa long and hard [...] but at the end of the day, while some people really like it, I don't think it strikes the right balance between power and ease of authoring.
HTML4 requires alt but doesn't give any advice about how to use it. With HTML5, I added a long section that describes how to use it in detail and said that in some cases (e.g., webcams), there might not be any useful replacement text, and so it would be ok in those cases (and only those cases) to omit the attribute. This caused a firestorm of protest from so-called accessibility experts.