SVG files served over HTTP (image/svg+xml) or detected by byte sniffing
are now rasterized to RGBA8 pixels at decode time using resvg/usvg,
producing the same DecodedImage that raster formats produce. Everything
downstream (layout, display list, rasterizer) works unchanged.
Includes dimension limits (8192px max, 64M pixels) to prevent SVG bomb
attacks, content-type validation against actual bytes, and NaN/Infinity
guards on SVG dimensions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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