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"Setting this directive to 'none' is similar to X-Frame-Options: deny (which is also supported in older browsers)." https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors
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Could you add the same change in config/_default/server.toml?
bdaehlie
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@scottmakestech Can you review this? Is it still a desirable and non-breaking thing to do? |
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… an iframe. Fixes #1080.
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Sets frame-ancestors property to none to prevent nesting this site in an iframe. Although we already set X-Frame-Options to deny, this is the modern CSP method for declaring this setting. Sees letsencrypt/website#1080 and letsencrypt/website#2148.
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Adds X-Frame-Options and CSP frame-ancestors headers to prevent this site from being embedded in an iframe on other domains. X-Frame-Options is the legacy header; frame-ancestors is the modern CSP equivalent. Both are set for maximum browser compatibility. See letsencrypt/website#1080 and letsencrypt/website#2148.
This was referenced Feb 13, 2026
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Adds X-Frame-Options and CSP frame-ancestors headers to prevent this site from being embedded in an iframe on other domains. X-Frame-Options is the legacy header; frame-ancestors is the modern CSP equivalent. Both are set for maximum browser compatibility. See letsencrypt/website#1080 and letsencrypt/website#2148.
scottmakestech
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Feb 13, 2026
Sets frame-ancestors property to none to prevent nesting this site in an iframe. Although we already set X-Frame-Options to deny, this is the modern CSP method for declaring this setting. Sees letsencrypt/website#1080 and letsencrypt/website#2148.
scottmakestech
added a commit
to divviup/website
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Feb 13, 2026
Adds X-Frame-Options and CSP frame-ancestors headers to prevent this site from being embedded in an iframe on other domains. X-Frame-Options is the legacy header; frame-ancestors is the modern CSP equivalent. Both are set for maximum browser compatibility. See letsencrypt/website#1080 and letsencrypt/website#2148.
scottmakestech
added a commit
to memorysafety/website
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Feb 13, 2026
Adds X-Frame-Options and CSP frame-ancestors headers to prevent this site from being embedded in an iframe on other domains. X-Frame-Options is the legacy header; frame-ancestors is the modern CSP equivalent. Both are set for maximum browser compatibility. See letsencrypt/website#1080 and letsencrypt/website#2148.
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Sets frame-ancestors property to none to prevent nesting this site in an iframe. Although we already set X-Frame-Options to deny, this is the modern CSP method for declaring this setting. Fixes letsencrypt#1080.
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"Setting this directive to 'none' is similar to X-Frame-Options: deny (which is also supported in older browsers)."
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors