applyPaths to return undefined for no match

Author: guybedford

src/system-resolve.js

@@ -8,7 +8,7 @@ SystemLoader.prototype.normalize = function(name, parentName, parentAddress) {
 
   // not absolute or relative -> apply paths (what will be sites)
   if (!name.match(absURLRegEx) && name[0] != '.')
-    name = new URL(applyPaths(this.paths, name), baseURI).href;
+    name = new URL(applyPaths(this.paths, name) || name, baseURI).href;
   // apply parent-relative normalization, parentAddress is already normalized
   else
     name = new URL(name, parentName || baseURI).href;

src/system.js

@@ -48,7 +48,7 @@ function applyPaths(paths, name) {
     }
   }
 
-  var outPath = paths[pathMatch] || name;
+  var outPath = paths[pathMatch];
   if (typeof wildcard == 'string')
     outPath = outPath.replace('*', wildcard);