Add CSP nonces and security headers#70
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antosubash merged 2 commits intomainfrom Apr 3, 2026
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- Add Content-Security-Policy with per-request cryptographic nonces for all inline Blazor scripts (DarkModeScript, InertiaShell importmap, AppLayout, PublicLayout, OAuthCallback) - Add X-Content-Type-Options, X-Frame-Options, Referrer-Policy, and X-Permitted-Cross-Domain-Policies response headers - Replace innerHTML message interpolation with textContent in error toast to eliminate XSS vector in app.tsx - Harden XML parsing in InstalledPackageDetector with DtdProcessing.Prohibit and null XmlResolver to prevent XXE - Switch InstallCommand from string-concatenated Arguments to ArgumentList for safe process argument passing - Add production warning log when seed users are created with default passwords outside Development environment
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# Conflicts: # framework/SimpleModule.Hosting/SimpleModuleHostExtensions.cs
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Changes
ICspNonceinterface andCspNonceimplementation that generates random base64-encoded nonces per request