Noissue - Skip unless-domain if list is empty

lib/abp2blocklist.js

Index: lib/abp2blocklist.js
===================================================================
--- a/lib/abp2blocklist.js
+++ b/lib/abp2blocklist.js
@@ -637,17 +637,17 @@
   }
   newSelector.push(selector.substring(i));
 
   return newSelector.join("");
 }
 
 function addCSSRules(rules, selectors, domain, exceptionDomains)
 {
-  let unlessDomain = exceptionDomains.size > 0 ? [] : null;
+  let unlessDomain = [];
 
   exceptionDomains.forEach(name =>
   {
     // For domain-specific filters, include the exception domains only if
     // they're subdomains of the given domain.
     if (!domain || name.substr(-domain.length - 1) == "." + domain)
       unlessDomain.push("*" + name);
   });
@@ -662,17 +662,17 @@
 
     let rule = {
       trigger: {"url-filter": matchDomain(domain),
                 "url-filter-is-case-sensitive": true},
       action: {type: "css-display-none",
                selector: selector}
     };
 
-    if (unlessDomain)
+    if (unlessDomain.length > 0)
       rule.trigger["unless-domain"] = unlessDomain;
 
     rules.push(rule);
   }
 }
 
 /**
  * Check if two strings are a close match