Hi,

I recently had som trouble due to files from Inkscape are saved with an xmlns to an nonexistant file:



Accessing the file above results in a 404 from sourceforge, with the following text:



Why not point the xmlns directive to an existant file, so user agents avoids requesting it fruitless, maybe even multiple times?

/reiche

Namespace names in XML namespace declarations are not URLs.

See also:

What is a Namespace Name

The namespace name, to serve its intended purpose, SHOULD have the characteristics of uniqueness and persistence. It is not a goal that it be directly usable for retrieval of a schema (if any exists).

Source: http://www.w3.org/TR/xml-names11/#ns-decl

(…) namespace names are just strings, so the fact that the SVG namespace name also looks like a URI isn't important. URIs are commonly used because they are unique, the intention is not to "link" somewhere. (In fact URIs are used so frequently that the term "namespace URI" is commonly used instead of "namespace name".)

Source: https://developer.mozilla.org/en/docs/Web/SVG/Namespaces_Crash_Course

Source: https://inkscape.org/en/namespaces/inkscape/

Thank you for your enlightenment.

Probably a fault at a layer of my user agent (FOP-0.20.5), but it I think it is a bad convention to use a string that is an URI look-a-alike. It is not possible to distinguish an 404 requesting a "fake" URI from a real missing DTD..

/reiche