[imps] Installinmg a local copy of validator.nu

Michael[tm] Smith mike at w3.org
Thu Nov 17 02:35:12 PST 2011

Martin Sharratt <Martin.Sharratt at uwe.ac.uk>, 2011-11-17 10:14 +0000:

> I wonder if you can help.  .  I'm now trying to install a local copy of the HTML5 validator (validator.nu) .
> This is currently failing to build due to a HTTP 503 - Service Unavailable error when the build script tries to download
> http://www.w3.org/TR/1999/PR-xhtml-19991210/DTD/xhtml1-strict.dtd.

Are you sure that's the URL it's reporting? Because that URL doesn't
appear anywhere in the sources for the validator.

Is it actually reporting http://www.w3.org/TR/1999/PR-xhtml1-19991210/DTD/xhtml1-strict.dtd ?

(Notice that's "PR-xhtml1-19991210" instead of "PR-xhtml-19991210".)

> I've emailed W3c to ask whether this is a temporary error at their end or
> if the URI is incorrect but have not had a reply as yet.
> Has anyone on the list experienced this problem and is there a solution?

If it is actually reporting http://www.w3.org/TR/1999/PR-xhtml1-19991210/DTD/xhtml1-strict.dtd
then can you please try accessing that URL in your browser and see if you
can reach it? The W3C has a system to blocks access to DTDs if the requests
come of IP addresses that have previously made an excessive number of
requests for DTDs.


Michael[tm] Smith

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