#ACCESS CONTROL ALLOW ORIGIN HEADER FULL#

Include the jetty-servlets JAR into you WEB-INF/lib and merge this into your WEB-INF/web.xml:

Jetty 7 ( starting with 7.0.0.RC2 to be exact) ships with a CrossOriginFilter. Enter Access-Control-Allow-Origin as the header name.In the Custom HTTP headers section, click Add.Right click the site you want to enable CORS for and go to Properties.Open Internet Information Service (IIS) Manager.If you don't have a web.config file already, or don't know what one is, just create a new file called 'web.config' containing the snippet above. Merge this into the web.config file at the root of your application / site: You can use add rather than set, but be aware that add can add the header multiple times, so it's generally safer to use set.įinally, you may need to reload Apache to make sure your changes have been applied.ĬORS can be enabled using the Headers core module which is compiled into nginx by default:Īdd_header Access-Control-Allow-Origin * Header set Access-Control-Allow-Origin '*' To expose the header, you can add the following line inside, , and sections, or within an. This is enabled by default in Apache, however you may want to ensure it's enabled in your deployment by running the following command: That said, in a typical Open Data situation, the wild-card can be an appropriate use of CORS.Īpache can be configured to expose this header using mod_headers.

#ACCESS CONTROL ALLOW ORIGIN HEADER FULL#

In a production setting, you should take advantage of the full features of the CORS specification to make sure it does express your actual security policy. This is provided to simplify basic use of CORS, practically meaning 'I don't care how this is used.' In an intranet setting, this could lead to leakage of data beyond the intranet and therefore should be avoided. Security Note: The examples given below assume a wild-card ' *' domain for the Access-Control-Allow-Origin header. It is also not possible to specify more than one Access-Control-Allow-Origin header.) (Note that it is not possible to grant access to multiple specific sites, nor use a partial wildcard match. This is compatible with both XHR XMLHttpRequest and XDR XDomainRequest, and is supported by all the major Web browsers. The asterisk wild-card permits scripts hosted on any site to load your resources listing a specific will permit scripts hosted on the specified site - and no others - to load your resources. Granting JavaScript clients basic access to your resources simply requires adding one HTTP Response Header, namely: If you have public data which doesn't use require cookie or session based authentication to see, then please consider opening it up for universal JavaScript/browser access.įor CORS access to anything other than simple, non auth protected resources please see this full write up on Cross Origin Request Security. While enabling such access is important for all data, it is especially important for Linked Open Data and related services without this, our data simply is not open to all clients.

3.1.7 For Apache Tomcat (7.0.41 and above)ĬORS is a specification that enables truly open access across domain boundaries.Ĭurrently, client-side scripts (e.g., JavaScript) are prevented from accessing much of the Web of Linked Data due to 'same origin' restrictions implemented in all major Web browsers.

3.1.6 For OpenLink Virtuoso (Basic Web Sites, Linked Data Spaces, SPARQL Endpoints, and otherwise).

Access Control Allow Origin header