fix(directAccess): Properly handle response status (#6966)

* fix(directAccess): Properly handle response status

* clean up

* handle status in batch

src/RestWrite.js

@@ -1704,7 +1704,8 @@ RestWrite.prototype.runAfterSaveTrigger = function () {
 RestWrite.prototype.location = function () {
   var middle =
     this.className === '_User' ? '/users/' : '/classes/' + this.className + '/';
-  return this.config.mount + middle + this.data.objectId;
+  const mount = this.config.mount || this.config.serverURL;
+  return mount + middle + this.data.objectId;
 };
 
 // A helper to get the object id for this operation.