Unknown HTML Character Entity Reference, with no DOCTYPE Declaration

Test

&unknown; is rendered as

&unknown;

© is rendered as

©

The innerHTML of the list above is:

About the first dd element:

• [There is no child.]

Expected Result

Conforming XHTML 1.0 User Agent

Conforming XHTML Family User Agent

The document is not well-formed and the error must be reported.

Discussion

See a SuikaWiki article on entity references in XHTML documents.