Talk:CORS Enabled
It is important that CORS headers are also added in case of error. e.g.:
* curl -I http://data.semanticweb.org/sparql -> 500 Internal Server Error, no header * curl -i http://data.semanticweb.org/sparql -> 400 Bad Request, no header
(not picking on data.semanticweb.org, same thing happens with many services)