Content negotiation werkt niet

[gezever]

curl -H "Accept: text/turtle" -L https://productencatalogus.data.vlaanderen.be/ns/ipdc-lpdc
curl -H "Accept: text/turtle" -L https://purl.eu/ns/consent
curl -H "Accept: text/turtle" -L https://purl.eu/ns/mobility/passenger-transport-hubs
curl -H "Accept: text/turtle" -L https://purl.eu/ns/mobility/timetables-and-planning
curl -H "Accept: text/turtle" -L https://wegenenverkeer.data.vlaanderen.be/ns/abstracten
curl -H "Accept: text/turtle" -L https://wegenenverkeer.data.vlaanderen.be/ns/implementatieelement
curl -H "Accept: text/turtle" -L https://wegenenverkeer.data.vlaanderen.be/ns/installatie
curl -H "Accept: text/turtle" -L https://wegenenverkeer.data.vlaanderen.be/ns/levenscyclus
curl -H "Accept: text/turtle" -L https://wegenenverkeer.data.vlaanderen.be/ns/onderdeel
curl -H "Accept: text/turtle" -L https://wegenenverkeer.data.vlaanderen.be/ns/proefenmeting

[gezever]

"NetworkError when attempting to fetch resource.
This website may not have CORS enabled, try enabling a proxy in the settings (button next to input field)."
https://rdf-play.rubensworks.net/