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February 20, 2023 03:16
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CSP header for Mastodon social network
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| (Assuming metalhead.club as instance domain - please adapt to your instance!) | |
| add_header Content-Security-Policy "default-src 'none'; script-src https: 'self'; object-src 'self'; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'self' data:; frame-src 'self' https:; font-src 'self' data:; connect-src 'self' wss://metalhead.club"; | |
| Note: | |
| style-src: I chose 'unsafe-inline' because there are just too many inline styles in static source code or dynamically | |
| generated code to cover all cases (Embed dialog, image lightbox, ...). Also styles seem to be dynamic, so | |
| hashes cannot be generated to allow certain inline styles. :-( | |
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Any update to this as I tried it and I got a large error in the Firefox console?