Issue 6652 - Do not push to unconditional selectors array

lib/elemHide.js

Index: lib/elemHide.js
===================================================================
--- a/lib/elemHide.js
+++ b/lib/elemHide.js
@@ -241,20 +241,22 @@
    *                         ElemHide.SPECIFIC_ONLY.
    * @returns {string[]}
    *   List of selectors.
    */
   getSelectorsForDomain(domain, criteria)
   {
     let selectors = [];
 
+    let unconditionalSelectors = null;
+
     if (typeof criteria == "undefined")
       criteria = ElemHide.ALL_MATCHING;
     if (criteria < ElemHide.NO_UNCONDITIONAL)
-      selectors = this.getUnconditionalSelectors();
+      unconditionalSelectors = this.getUnconditionalSelectors();
 
     let specificOnly = (criteria >= ElemHide.SPECIFIC_ONLY);
     let excluded = new Set();
     let currentDomain = domain ? domain.toUpperCase() : "";
 
     // This code is a performance hot-spot, which is why we've made certain
     // micro-optimisations. Please be careful before making changes.
     while (true)
@@ -281,11 +283,14 @@
 
       if (currentDomain == "")
         break;
 
       let nextDot = currentDomain.indexOf(".");
       currentDomain = nextDot == -1 ? "" : currentDomain.substr(nextDot + 1);
     }
 
+    if (unconditionalSelectors)
+      selectors = unconditionalSelectors.concat(selectors);
+
     return selectors;
   }
 };