Detect "Next Chapter" links better

lib/worm-scraper.js

@@ -117,6 +117,15 @@ function cleanContentEl(el) {
 }
 
 function getNextChapterUrl(rawChapterDoc) {
-  const nextEl = rawChapterDoc.querySelector("a[title=\"Next Chapter\"]");
-  return nextEl && nextEl.href;
+  // a[title="Next Chapter"] doesn't always work (e.g. https://parahumans.wordpress.com/2011/09/27/shell-4-2/)
+  // So instead search for the first <a> within the main content area starting with "Next".
+
+  const aEls = rawChapterDoc.querySelectorAll(".entry-content a");
+  for (let i = 0; i < aEls.length; ++i) {
+    if (aEls[i].textContent.startsWith("Next")) {
+      return aEls[i].href;
+    }
+  }
+
+  return null;
 }