[Bug 7144] I am not sure if we are ditching ALT in favour of legend. You don't make this clear here. Some of your alt examples here resemble longdesc, which I am in favour of ditching completely. I'd be interested to see your answer on whatwg list about this
[Bug 7539] Since @summary is an official part of the table element, it is no longer obsolete. Suffienct warning language exists in it's definition that this entry should be removed
[Bug 7764] Since the online whitelist entries are namespaces it should not use a prefix match but instead something more complicated as is defined for fallback entries in 6.9.5.
[Bug 7799] If the fragid doesn't match an ID or a name in the document, then surely the browser should revert to doing a text search for the fragid text in the document
[Bug 7843] Please make 'abort', ' loadend' and 'emptied' use "queue a task". Firing them sync is annoying to implement and doesn't seem to solve any problem.
[Bug 7844] Remove "that is in a Document and" when the src attribute is set and when a source is inserted, because there's no reason resource selection shouldn't be run when it's not in the document. Then we also don't have to run resource selection when inserting a
[Bug 7858] All the current entries should merge into one current entry in the joint session history. (imagine a series of nested iframes that haven't been navigated, and call go(-1)... it should go back at the top-level, not do something weird with the iframes)
[Bug 7859] Mention under step 1 that it can also be aborted if the user agent has discovered that there is no network available and therefore cannot perform HTTP requests. This prevents dispatching error events when the user is using the application offline.
[Bug 7878] An attribute to actually find out if something is playing would be nice (.isplaying). Unless I'm wrong currently you can't actually tell if something is playing without setting var with JS when you start to play and you can't go by the playback position s
[Bug 7895] In step 6, it should be allowed (and clear that it is allowed) for UAs to use additional data such as the site TLD to guess the correct encoding
[Bug 7972] It appears that the steps listed for what to do when reset() is invoked contain a race condition unless step 1 (checking if already marked) and step 2 (marking the form as locked) are performed atomically together.
[Bug 8047] Reflecting floats: The rules for parsing floating point number values return an unlimited-precision (finite in base 10) number. How is it converted to limited-precision IDL attribute types? In particular, what rounding mode is used? and do very large valu
[Bug 8060] Why must class be a set of unique tokens? It's quite common to have duplicates (~0.5% of dotbot pages), and convenient when you're programmatically generating HTML, and harmless
[Bug 8125] Can it be specified somewhere that script can define a variable named "top" with 'var top' in a global context? This is currently inconsistent across browsers.
[Bug 8137] In the scripting-enabled case, noscript outside head has to be conforming if replaced by its parsed text, but noscript inside head doesn't (so <noscript><meta bogus></noscript> is allowed); they ought to consistently require conformingness. [pt]