fix(auto): stop footer-flooding flat content pages#3
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Page-end overwrite dyed html+body+body::before with the last opaque section's color, flooding the visible background of flat light pages with a short high-contrast footer. Classify the end section as a designed end-zone vs an incidental footer; for the incidental case tint <html> only (correct rubber-band color, body left alone). Add overscrollFill: 'auto'|'always'|'never' escape hatch. Backward compatible: tall/gradient/continuous endings still fully overwrite. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
Page-end overwrite dyed
html+body+body::beforewith the last opaque section's color, flooding the visible background of flat light pages with a short high-contrast footer. This classifies the end section as a designed end-zone vs an incidental footer:html+body+body::beforeoverwrite (unchanged)<html>only (correct rubber-band color, visible body left alone)Adds an
overscrollFill: 'auto' | 'always' | 'never'escape hatch (default'auto'). Backward compatible — every pre-existing overscroll case (footer ≥ 50vh) still classifies as end-zone and floods exactly as before.Tests
node test/pure.mjs→ 31/0node test/integration.mjs→ 79/0 (incl. new N–N5: incidental-no-flood / always / never / tall-still-floods / continuous-color-floods)Both engines kept in lockstep (
src/utils.mjsESM +src/utils.jsCJS),.d.ts+ README updated.The chrome tint + overscroll overwrite only render on real iOS Safari 26+ (
if (!isIOS) return); headless/CI proves the decision logic, not the native paint. Before publishing 2.2.0, the real-iPhone regression matrix must pass: gradient page stays seamless / flat page no longer floods brown / rubber-band tints correctly on both.🤖 Generated with Claude Code