Additional security layer that helps prevent and mitigate some types of attacks, including Cross Site Scripting.

All configurable directives can be filled according to specification https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/Sources#sources

Configurable Properties

Directive default_src

The default-src directive serves as a fallback for the other CSP directives. For each missing directive, the user agent looks up the directive and uses its value.

Directive style_src

The directive specifies valid sources for style sheets. If this directive is absent, the user agent will look for the default-src directive. One or more sources are allowed for the style-src directive.

Directive font_src

The directive specifies valid sources for the loaded text fonts. If this directive is absent, the user agent will look for the default-src directive. One or more sources are allowed for the font-src directive.

Directive script_src

The directive specifies valid JavaScript sources. If this directive is absent, the user agent will look for the default-src directive. One or more sources are allowed for the

script-src directive.

Directive img_src

The directive specifies valid image sources. If this directive is absent, the user agent will look for the default-src directive. One or more sources are allowed for the

img-src directive.

Directive frame_src

The directive specifies valid sources for loading nested browsing contexts using elements like <frame> and <iframe>. One or more sources are allowed for the frame-src directive.

Directive frame_ancestors_src

The directive specifies valid sites that can embed the Deyel portal using <frame>, <iframe>, <object>, <embed> o <applet>. It differs from the frame-src directive as the latter specifies where iframes can be loaded from in the Deyel portal. One or more sources are allowed for the frame-ancestor-src directive.

Directive form_action_src

The directive determines the URLs that can be used from Deyel as destination in the <form> tags of HTML. One or more sources are allowed for the form-action-src directive.

Directive connect_src

The directive determines the URLs that can be loaded via script interfaces. The APIs not allowed in the directive are: <a> ping, fetch(), XMLHttpRequest, WebSocket,EventSource and Navigator.sendBeacon(). If this directive is absent, the user agent will look for the default-src directive. One or more sources are allowed for the connect-src directive.

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