Noissue - Use lowercase for WebRTC and WebSocket resource types

lib/requestBlocker.js

Index: lib/requestBlocker.js
===================================================================
--- a/lib/requestBlocker.js
+++ b/lib/requestBlocker.js
@@ -33,26 +33,26 @@
 // OBJECT_SUBREQUEST and OBJECT requests.
 RegExpFilter.typeMap.OBJECT_SUBREQUEST = RegExpFilter.typeMap.OBJECT;
 
 // Map of content types reported by the browser to the respecitve content types
 // used by Adblock Plus. Other content types are simply mapped to OTHER.
 let resourceTypes = new Map(function*()
 {
   for (let type in RegExpFilter.typeMap)
-    yield [type.toLowerCase(), type];
+    yield [type, type];
 
-  yield ["sub_frame", "SUBDOCUMENT"];
+  yield ["SUB_FRAME", "SUBDOCUMENT"];
 
   // Treat navigator.sendBeacon() the same as <a ping>, it's essentially the
   // same concept - merely generalized.
-  yield ["beacon", "PING"];
+  yield ["BEACON", "PING"];
 
   // Treat <img srcset> and <picture> the same as other images.
-  yield ["imageset", "IMAGE"];
+  yield ["IMAGESET", "IMAGE"];
 }());
 
 function onBeforeRequestAsync(page, url, type, docDomain,
                               thirdParty, sitekey,
                               specificOnly, filter)
 {
   if (filter)
     FilterNotifier.emit("filter.hitCount", filter, 0, 0, page);
@@ -76,17 +76,17 @@
   let docDomain = extractHostFromFrame(frame);
   let thirdParty = isThirdParty(url, docDomain);
   let sitekey = getKey(page, frame);
 
   let specificOnly = !!checkWhitelisted(
     page, frame, RegExpFilter.typeMap.GENERICBLOCK
   );
 
-  let mappedType = resourceTypes.get(type) || "OTHER";
+  let mappedType = resourceTypes.get(type.toUpperCase()) || "OTHER";
 
   let filter = defaultMatcher.matchesAny(
     urlString, RegExpFilter.typeMap[mappedType],
     docDomain, thirdParty, sitekey, specificOnly
   );
 
   setTimeout(onBeforeRequestAsync, 0, page, urlString,
                                       mappedType, docDomain,