This feature was introduced in VuFind 7.0.

HTTP responses can include a Content Security Policy header which provides restrictions on the behavior of the client in order ot provide improved security. VuFind supports the creation of CSP headers to restrict web browser behavior and prevent common security vulnerabilities such as cross-site scripting.

You can learn more at the Mozilla Developer Resources Content Security Policies page.

All settings related to Content Security Policies can be found in contentsecuritypolicy.ini.

The CSP can be configured to either block violating content, or simply to report problems. VuFind is set to reporting mode by default to avoid backward compatibility breaks.

When in reporting mode, you can set the report-to setting in contentsecuritypolicy.ini to send reports of violations to a URI that implements a simple API. VuFind does not currently include a built-in reporting endpoint, but several options exist, including:

• seek-oss/csp-server - an open source, Node.js-based solution
• ReportURI - a commercial, cloud-based service

Details coming soon.