Fix dev insecure response

Author: Ives van Hoorne

config/webpack.config.js

@@ -27,9 +27,7 @@ const COMMIT_HASH = childProcess
   .toString();
 const VERSION = `${COMMIT_COUNT}-${COMMIT_HASH}`;
 
-const publicPath = __PROD__
-  ? 'https://codesandbox.io/'
-  : 'https://codesandbox.dev/';
+const publicPath = __PROD__ ? 'https://codesandbox.io/' : '/';
 
 const getOutput = () =>
   __DEV__
@@ -442,6 +440,16 @@ if (__PROD__) {
             },
           },
         },
+        {
+          urlPattern: /webpack-dll-prod\.herokuapp\.com/,
+          handler: 'fastest',
+          options: {
+            cache: {
+              maxEntries: 100,
+              name: 'packager-cache',
+            },
+          },
+        },
         {
           urlPattern: /https:\/\/d3i2v4dxqvxaq9\.cloudfront\.net/,
           handler: 'fastest',

src/sandbox/utils/host.js

@@ -4,7 +4,7 @@ function getHost() {
   }
 
   return process.env.NODE_ENV === 'development'
-    ? 'https://codesandbox.dev'
+    ? '*'
     : 'https://codesandbox.io';
 }