Refactoring day1

node_modules/mongoose/lib/error/serverSelection.js

@@ -28,8 +28,7 @@ class MongooseServerSelectionError extends MongooseError {
     // Special message for a case that is likely due to IP whitelisting issues.
     const isAtlasWhitelistError = isAtlas(reason) &&
       allServersUnknown(reason) &&
-      err.message.indexOf('bad auth') === -1 &&
-      err.message.indexOf('Authentication failed') === -1;
+      err.message.indexOf('bad auth') === -1;
     this.message = isAtlasWhitelistError ?
       atlasMessage :
       err.message;