[whatwg] EMBED should not require src if type is specified.

[Shadow2531]

As mentioned offtopic in
<http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2006-November/007936.html>,
just like OBJECT, for EMBED, the src attribute is not always needed
and sometimes it must not be present.

The best example for not requiring src is the tcl plug-in.
<http://shadow2531.com/opera/testcases/plugins/tcl/001.html>
<http://shadow2531.com/opera/testcases/plugins/tcl/001-a.html>

Also, Java can be loaded via the embed element where src is not needed.
<http://shadow2531.com/opera/testcases/plugins/java/007.html>

There are other cases with the Windows Media plug-in or with the
RealPlayer plug-in where just loading the plug-in with the type
attribute and doing scripting on the object is desirable.

There's also the neptune plug-in. For example: <embed
type="application/x-meadco-neptune-ax"
param-location="your-entry-page.htm">. In this case, it wants a
param-location param and not a src param.


-- 
burnout426