Error dialog and no data (trying it out with fuseki 2)

[retog]

I did the following:

• started fuseki 2 with docker run --name fuseki stain/jena-fuseki
• installed foowiki on lighhttpd on another container named foowiki

apt-get update
apt-get install lighttpd wget unzip
cd /var/www/
wget https://github.com/danja/foowiki/archive/master.zip
/etc/init.d/lighttpd start
mv foowiki-master/ foowiki

• changed foowiki/js/foowiki/config.js adding the prefix "http://fuseki:3030" to sparql*Endpoint
• started a container for firefox linked to both fuseki and foowiki: docker run -d -p 127.0.0.1:5689:22 --link=fuseki:fuseki --link=foowiki:foowiki reto/firefox
• started firefox in that docker: ssh -X -R64713:localhost:4713 -X [email protected] -p 5689 firefox
• uploaded pages.ttl to a newly created foowiki dataset, both in thed efault graph as well as http://hyperdata.it/wiki

Accessing http://foowiki/foowiki/index.html produces two dialogs with the text "error", I see that two requests are sent to fuseki, such as:
http://fuseki:3030/foowiki/sparql?query=PREFIX%20rdf%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23%3E%20%0APREFIX%20rdfs%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23%3E%20%20%0APREFIX%20dc%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fterms%2F%3E%20%20%0APREFIX%20dctype%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fdcmitype%2F%3E%20%0APREFIX%20foaf%3A%20%3Chttp%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2F%3E%20%20%0APREFIX%20sioc%3A%20%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Fns%23%3E%20%20%0APREFIX%20wiki%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fstuff%2Fwiki%23%3E%20%20%0A%0ASELECT%20DISTINCT%20%3FtopicLabel%20%20%20%0A%20FROM%20NAMED%20%3Chttp%3A%2F%2Fhyperdata.it%2Fwiki%3E%20%20%0AWHERE%20%7B%20%20%0A%20%20%20%20%3Fs%20dc%3Atopic%20%3FtopicURI%20.%20%0A%20%20%20%20%3FtopicURI%20rdfs%3Alabel%20%3FtopicLabel%20.%20%20%0A%7D%20%20%0A&output=xml

Both requests results in a 200 response but no data in the response. Strangely the same query produces some results in the fuseki console. Maybe its a problem sending the query as GET request? Does an empty result causes the error-dialog?

[retog]

Ok, missed the essential error message before:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://fuseki:3030/foowiki/sparql?query=PREFIX%20rdf%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23%3E%20%0APREFIX%20rdfs%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23%3E%20%20%0APREFIX%20dc%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fterms%2F%3E%20%20%0APREFIX%20dctype%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fdcmitype%2F%3E%20%0APREFIX%20foaf%3A%20%3Chttp%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2F%3E%20%20%0APREFIX%20sioc%3A%20%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Fns%23%3E%20%20%0APREFIX%20wiki%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fstuff%2Fwiki%23%3E%20%20%0A%0ASELECT%20DISTINCT%20%3FtopicLabel%20%20%20%0A%20FROM%20NAMED%20%3Chttp%3A%2F%2Fhyperdata.it%2Fwiki%3E%20%20%0AWHERE%20%7B%20%20%0A%20%20%20%20%3Fs%20dc%3Atopic%20%3FtopicURI%20.%20%0A%20%20%20%20%3FtopicURI%20rdfs%3Alabel%20%3FtopicLabel%20.%20%20%0A%7D%20%20%0A&output=xml. This can be fixed by moving the resource to the same domain or enabling CORS.

So I have to find out how to enable CORS on fuseki.