fix: A couple minor bug fixes (#436)

* Fix so deref always returns an object.
* Fix SelectOnClick so it does not crash
* chore: fix demo's webpack.config.ts
* Fix space

demo/index.tsx

@@ -2,7 +2,7 @@ import * as React from 'react';
 import { render } from 'react-dom';
 import styled from 'styled-components';
 import { resolve as urlResolve } from 'url';
-import { RedocStandalone } from '../';
+import { RedocStandalone } from '../src';
 import ComboBox from './ComboBox';
 
 const demos = [

demo/webpack.config.ts

@@ -29,6 +29,10 @@ export default {
     extensions: ['.ts', '.tsx', '.js', '.json'],
   },
   
+  node: {
+    fs: 'empty',
+  },
+
   module: {
     rules: [
       { enforce: 'pre', test: /\.js$/, loader: 'source-map-loader' },
@@ -56,6 +60,17 @@ export default {
           },
         },
       },
+      {
+        test: /node_modules\/(swagger2openapi|reftools)\/.*\.js$/,
+        use: {
+          loader: 'awesome-typescript-loader',
+          options: {
+            transpileOnly: true,
+            allowJs: true,
+            instance: 'ts2js-transpiler-only',
+          },
+        },
+      },
     ],
   },
   plugins: [

src/components/SelectOnClick/SelectOnClick.tsx

@@ -5,7 +5,7 @@ import { ClipboardService } from '../../services';
 export class SelectOnClick extends React.PureComponent {
   private child: HTMLDivElement | null;
   handleClick = () => {
-    ClipboardService.selectElement(this.refs.child);
+    ClipboardService.selectElement(this.child);
   };
 
   render() {

src/services/OpenAPIParser.ts

@@ -105,7 +105,7 @@ export class OpenAPIParser {
     } catch (e) {
       // do nothing
     }
-    return res;
+    return res || {};
   };
 
   /**