Commit e1056df refactored renumber() to place gutter numbers by measured
.codeline geometry but left the one-frame verification pass reading the
removed 'tops' array — a ReferenceError at line 80 that aborts renumber()
before any number is assigned, leaving the wrap-ON gutter with blank filler
rows. Read the placement from the already-computed rowIdx array instead.
Verified locally (CDP bounding-box probes, 6-line paste incl. one long
unbroken token that wraps mid-word): gutter number top vs .codeline top
diff <= 0.1px for every line at 1400x900 and 375x812, wrap ON and OFF.
Wrap OFF keeps the plain '1..N' text gutter with no .gutline spans.
No console or CSP violations.
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