Enabling Cross-Origin Resource Sharing (CORS) on a Virtuoso SPARQL Endpoint

What is CORS?

CORS enables conventional client-server interactions over a Web of data sources, with embedded elements from multiple sources presented by a single page. Basically, CORS helps traverse the Web from a single original data source.

Why enable CORS?

Enabling a Virtuoso SPARQL Endpoint to serve the Data Access needs of user agents (e.g., Javascript clients) that are programmed to leverage CORS.

How can I enable CORS?

You CORS enable a Virtuoso SPARQL endpoint via the following steps:

1. Go to the HTML-based Instance Admin UI (Conductor) at http://{your-instance-hostname}:[port]/conductor.
2. Enter dba credentials.
3. Go to Web Application Server → Virtual Domains & Directories:
   
   
   
   
4. Expand Interface for the Default Web Site:
   
   
   
   
5. Locate the /sparql Logical Path:
   
   
   
   
6. Click Edit:
   
   
   
   
   
7. Enter, for example, * in the Cross-Origin Resource Sharing input field. Optionally you can check the Reject Unintended CORS check-box:
   
   
   
   
8. Click Save Changes.

Related

• Virtuoso Tips and Tricks Collection
• Setting up server-side Cross-Origin Resource Sharing (CORS) with Virtuoso
• Third-party guide to enabling Cross-Origin Resource Sharing with various servers