Triage found the findNext fast path compared each existing `<mark>`'s
textContent byte-for-byte against the typed query. Since highlightMatches
stores the ORIGINAL-CASE source slice, the first differently-cased match
('Hermes' for 'hermes', sentence-initial capitals, ALL-CAPS) failed the
check, forcing a full re-wrap on every Enter/⌘G: fresh `<mark>` elements
lose `data-find-active`, `previousActive` resolves null, and the active
ordinal stays 1 forever (backward steps land on the last match every
time).
Compare case-insensitively. Regression test pins the differently-cased
stepping behavior: same marks survive, count stays 2, ordinal advances
to 2.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Chen Jin
0ea7349336