The previous fallback scanned for any anchor whose text was a number, which
matched widget elements (online count, trending threads, etc.) and inflated
the page count — a sidebar showing "26" caused detectMaxPage to report 26
pages on threads that were actually 12 and 8 pages long.
Now we derive the thread's URL prefix from the input baseUrl and only count
page-N references in hrefs that match that thread, ignoring sidebar
references to unrelated threads. The bare numeric-anchor scan is dropped.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Trey T
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