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fix: add a Content-Security-Policy meta tag to docusaurus.config.js headTags #358

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Merged
mrbobbytables merged 1 commit into from
Sep 21, 2026
Merged

fix: add a Content-Security-Policy meta tag to docusaurus.config.js headTags #358

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20 changes: 20 additions & 0 deletions docusaurus.config.js
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,26 @@ const config = {
href: '/favicons/apple-touch-icon.png',
},
},
{
tagName: 'meta',
attributes: {
'http-equiv': 'Content-Security-Policy',
// Defence in depth for content this site does not author: architecture
// MDX and image assets are mirrored from cncf/architecture, and several
// data/*.json files supply href and src values rendered by src/components.
// These three directives need no allowance for inline or bundled script,
// so they hold without constraining Docusaurus hydration or local search.
// script-src is deliberately omitted: Docusaurus emits inline bootstrap
// scripts, so it could only ship with 'unsafe-inline', which would add no
// protection. frame-ancestors is omitted because browsers ignore it when
// delivered via <meta http-equiv>; it needs a real response header.
content: [
"base-uri 'self'",
"object-src 'none'",
"form-action 'self'",
].join('; '),
},
},
{
tagName: 'script',
attributes: {
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