Can src of an iframe be just HTML fragments?

I'm trying to answer a question the validator can't tell me. I've got some <iframe> tags in a document that validates. The validator never sees the source referenced in these tags, and thus doesn't try to validate them.

Shouldn't it, though? Because:

The browsers do see this, because they have to render it. So do I need to make sure that any file referenced by an <iframe> is complete HTML that validates, with <html>, <head>, and <body>?

Received on Friday, 8 June 2001 18:46:04 UTC