fixed possibility of duplicate entries

configurator/public/index.html

@@ -277,7 +277,25 @@ cache_log /var/log/squid/cache.log
 `;
 }
 function genDomains(s) {
-  return s.domains.map(d => d.startsWith('*.') ? '.' + d.slice(2) : d).join('\n') + '\n';
+  let wildcardBases = s.domains
+    .filter(d => d.startsWith('*.'))
+    .map(d => d.slice(2));
+  wildcardBases = wildcardBases.filter(base =>
+    !wildcardBases.some(other => other !== base && base.endsWith('.' + other))
+  );
+  const isCovered = d => wildcardBases.some(b => d === b || d.endsWith('.' + b));
+  const seen = new Set();
+  const out = [];
+  for (const base of wildcardBases) {
+    const dotted = '.' + base;
+    if (!seen.has(dotted)) { out.push(dotted); seen.add(dotted); }
+  }
+  for (const d of s.domains) {
+    if (d.startsWith('*.')) continue;
+    if (isCovered(d) || seen.has(d)) continue;
+    out.push(d); seen.add(d);
+  }
+  return out.join('\n') + '\n';
 }
 function genWpad(s) {
   return `function FindProxyForURL(url, host) {