index: filter empty entries

lib/index.js

@@ -386,7 +386,16 @@ export default class Now extends EventEmitter {
         if (attempt > 1) fallback = true;
           throw new Error(`Whois error (${res.status}): ${body.error.message}`);
         }
-      }).then((body) => resolve(body));
+      }).then((body) => {
+        body.nameservers = body.nameservers.filter((ns) => {
+          // temporary hack:
+          // sometimes we get a response that looks like:
+          // ['ns', 'ns', '', '']
+          // so we filter the empty ones
+          return ns.length;
+        });
+        resolve(body);
+      });
     });
   }