A directive appears twice in one policy, and browsers ignore the second one.

CSP_DUPLICATE_DIRECTIVE · Severity: Warning

• WarningCSP_DUPLICATE_DIRECTIVE

  A directive appears twice in one policy, and browsers ignore the second one.

  CSP uses the first occurrence of a directive and drops later ones, so sources added in the repeated directive have no effect.

  Recommendation: Merge the sources into one directive.

Reported by

• CSP header parser

Available through the API

• CSP header parser API

Related findings

• Info CSP_DEPRECATED_DIRECTIVE The policy uses a directive that has been removed from CSP.
• Error CSP_EMPTY_POLICY The pasted Content-Security-Policy has no directives.
• Info CSP_MISSING The HTTPS site sends no Content-Security-Policy header.
• Info CSP_NO_BASE_URI The policy does not restrict the base element (base-uri).
• Warning CSP_NO_DEFAULT_SRC The policy has no default-src directive.
• Warning CSP_NO_OBJECT_SRC Plugin content (object and embed elements) is not restricted.

All findings