add guard against empty schemas

Author: noahrc

dist/bundle.js

@@ -1,7 +1,7 @@
 /*!
  * json-schema-view-js
  * https://github.com/mohsen1/json-schema-view-js#readme
- * Version: 0.4.1 - 2016-05-06T19:52:05.306Z
+ * Version: 0.4.1 - 2016-05-06T21:04:10.062Z
  * License: MIT
  */
 

dist/bundle.min.js

@@ -30,6 +30,9 @@ export default class JSONSchemaView {
     this.options = options;
     this.isCollapsed = open <= 0;
 
+    // Guard against empty schemas
+    if (!this.schema) return '';
+
     // if schema is an empty object which means any JOSN
     this.isAny = typeof schema === 'object' &&
       !Array.isArray(schema) &&