Content Type:

This service tunnels HTTP requests and changes the MIME type of text/html resources to application/xml, application/xhtml+xml or any other MIME type. This allows accurate testing with XHTML user agents.

When an input document is not well-formed, the unmodified source is output. An XHTML user agent will then detect the well-formedness violation. Otherwise, a comment <!-- XHTML Proxy has successfully processed this page. --> is added at the end of the page.

Testing XHTML documents in XHTML user agents is important as there are subtle differences between HTML and XHTML:

To avoid excessive traffic at w3.org, some DTD URLs (such as http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd) are rewritten to point to my own server.


Don't hesitate to send your comments to Christoph Schneegans (christoph@schneegans.de).

HTTP requests from this service always contain the header User-Agent: XHTML Proxy (+http://schneegans.de/xp/). Please inform me if you observe excessive traffic to your site.