Chrome also fires an implicit request for /favicon.ico; with only an SVG
link declared and no .ico at the site root, that 404 left the tab without
an icon. Add a square multi-res .ico (48/32/16) and a 180x180
apple-touch-icon — both derived from the jar art already embedded in
favicon.svg — and declare the full icon set (ico + svg + apple-touch) in
BaseLayout.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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