HTML5 validation error

I've been messing around with HTML5 recently as well as using YouTube's new HTML5/WEBM video player.
However, I always get an odd validation error that I don't understand.

Here's a test page, kept simple:



The validation error goes like this:




If I put in other attributes it always moans about the last one, whatever it is. When it says "not allowed at this point" does it mean "this point in time"? or "this point marked in red"?

I'm going to say it's referring to "this point in time" based on the rest of the error message.



In the error, "Global attributes" is a link to the specification, and nowhere in the list is there a "type" attribute.

Come to think of it, this is the first time I've seen a type attribute on an <iframe>, I really can't think of a reason it would be useful.
After dropping that type attribute, I get validation success.

Ah, I get it now. If the error had said no attribute "type" (in quotes) I wouldn't have been so puzzled. I was thinking of attributes of any type (as in any kind). Jeesh...

Thanks Joebert.

It mentions the type attribute on this page. A draft document though. Maybe the validator is not up to speed yet or somethning.

It looks like that link is going directly to the attributes of the <embed> element.

The list of generic, or globally available attributes seems to be as follows.



Here's the part of the spec for the <iframe> element.

It seems to be filled with plenty of scary bold red warning messages. I might have to read through this myself as well.

it's because you tried with attributes at first, and in html5, attributes are at last. Like this:



Here you have a valid html5 iframe, it complains with w3c standards:



Hope this helps you.