shadowdaoandClaude Sonnet 5.5
dbf3dda3e4
HeroSimple emitted 'background' together with backgroundImage/Size/Position that were undefined. React assigns '' for those on first render and Chromium and Firefox then wipe the shorthand's gradient (background-image: none), so the canvas hero rendered white. Build the style with only the relevant keys (shared by render and toHtml); exported HTML is byte-identical. Adds a real-browser (Chromium+Firefox) regression test: npm run test:browser:bg, and toHtml byte-identity assertions. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
