Content-Security-Policy: frame-ancestors 'self' *.This only allows the current site to frame the content.Content-Security-Policy: frame-ancestors 'self'.This setting is recommended unless a specific need has been identified for framing. This prevents any domain from framing the content.Content-Security-Policy: frame-ancestors 'none'.Content-Security-Policy: frame-ancestors Examples ¶ Sites can use this to avoid Clickjacking attacks by ensuring that their content is not embedded into other sites.įrame-ancestors allows a site to authorize multiple domains using the normal Content Security Policy semantics. The frame-ancestors directive can be used in a Content-Security-Policy HTTP response header to indicate whether or not a browser should be allowed to render a page in a or. Defending with Content Security Policy (CSP) frame-ancestors directive ¶ Note that these mechanisms are all independent of each other, and where possible more than one of them should be implemented in order to provide defense in depth.
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Implementing JavaScript code in the page to attempt to prevent it being loaded in a frame (known as a "frame-buster").Preventing session cookies from being included when the page is loaded in a frame using the SameSite cookie attribute.Preventing the browser from loading the page in frame using the X-Frame-Options or Content Security Policy (frame-ancestors) HTTP headers.There are three main mechanisms that can be used to defend against these attacks:
HOW TO CHECKSITE FOR CLICKJACKING HOW TO
This cheat sheet is intended to provide guidance for developers on how to defend against Clickjacking, also known as UI redress attacks. Insecure Direct Object Reference PreventionĬlickjacking Defense Cheat Sheet ¶ Introduction ¶ Defending with Content Security Policy (CSP) frame-ancestors directiveĬontent-Security-Policy: frame-ancestors Examplesĭefending with X-Frame-Options Response Headersīest-for-now Legacy Browser Frame Breaking Script
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