> can contain urls or other javascript injection mechanisms), and I can add
> them. (Added several now.) Others, like `embed` are *scary*. --[[Joey]]
+> I have not added the new `ping` attribute, because parsing a
+> space-separeated list of urls to avoid javascript injection is annoying,
+> and the attribute seems generally dubious. --[[Joey]]
+
# HTML5 Validation and t/html.t
[validator.nu](http://validator.nu/) is the authorative HTML5 validator,