[VE][html5] Add Subject Here

Validating http://windraseptamadya.blogspot.com/
Error [html5]: ""

& did not start a character reference. (& probably should have been escaped as &.)

But the wrong is in my href, not in the inner of this HTML

Allowed and valid:
<a>&amp;</a>
Allowed, but invalid:
<a>&</a>
Allowed and valid:
<a href="abc.com/a&b">&amp;</a>
Allowed, but invalid:
<a href="abc.com/a&b">&</a>

abc.com/a&b is different to abc.com/a&amp;b.
Thank you. This is my suggestion.

Suggestion:
in href and src, no &amp;, but &. In the inner of the tag (e.g. <a>inner of the tag</a>), is invalid to place the & into that, but &amp; is valid.