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Expand Content Security Policy to allow data URIs and SVGs for images. #46

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Merged
maartenba merged 1 commit into from
Feb 13, 2026
Merged

Expand Content Security Policy to allow data URIs and SVGs for images. #46

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5 changes: 4 additions & 1 deletion src/Pages/SecurityHeadersAttribute.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -34,8 +34,11 @@ public override void OnResultExecuting(ResultExecutingContext context)
// also an example if you need client images to be displayed from twitter
// csp += "img-src 'self' https://pbs.twimg.com;";

// Images / SVGs
csp += "img-src 'self' data: w3.org/svg/2000;";

// Google Fonts
csp += "font-src 'self' fonts.gstatic.com; style-src 'self' fonts.googleapis.com";
csp += "font-src 'self' fonts.gstatic.com; style-src 'self' fonts.googleapis.com;";

// once for standards compliant browsers
if (!context.HttpContext.Response.Headers.ContainsKey("Content-Security-Policy"))
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