--no-cache option

lib/cli-options.js

@@ -17,6 +17,10 @@ module.exports = {
       description: 'Enable gzip compression, reduces bandwidth.', group: 'server'
     },
     {
+      name: 'no-cache', alias: 'n', type: Boolean,
+      description: 'Disable etag-based caching.', group: 'server'
+    },
+    {
       name: 'help', alias: 'h', type: Boolean,
       description: 'Print these usage instructions', group: 'misc'
     },

lib/local-web-server.js

@@ -83,8 +83,11 @@ function getApp (options) {
     })
   }
 
-  app.use(conditional())
-  app.use(etag())
+  /* Cache */
+  if (!options['no-cache']) {
+    app.use(conditional())
+    app.use(etag())
+  }
 
   /* mime-type overrides */
   if (options.mime) {