Experimental (Schema Based) Lax XHTML1.0 Transitional Validator

This is a temporary service set up by Joseph Reagle for exploration by the RDF-in-XHTML task force, and uses XSV and Masayasu Ishikawa's schema as he described:

... this schema is an "open" schema, i.e. it allows foreign elements and attributes on most places, with processContents="lax" rather than the default value of "strict". So, you may embed RDF stuff or arbitrary XML almost anywhere inside XHTML and you could also validate your RDF stuff if it's at all possible to define some sort of XML Schema for your RDF bit, otherwise your RDF stuff is only laxly assessed. Yet schema-validity of the XHTML part is strictly assessed, so you'll be able to find bugs in your XHTML part.

For example, it can be used to test the following:

• A test page of Creative Commons with embedded (non-commented) RDF [validate ] (presently laxly valid)
• Phil Ringnalda's use of embedded RDF for track back [validate] (though this page is sometimes invalid because of an unescape ampersand.)

CAUTION: This schema is purely experimental, it has no official standing whatsoever and has not maintaince commitment.