Prevent html-minifier to remove placeholder comment in index.html template

build/webpack.prod.conf.js

@@ -58,7 +58,8 @@ var webpackConfig = merge(baseWebpackConfig, {
       minify: {
         removeComments: true,
         collapseWhitespace: true,
-        removeAttributeQuotes: true
+        removeAttributeQuotes: true,
+        ignoreCustomComments: [/server-generated-meta/]
         // more options:
         // https://github.com/kangax/html-minifier#options-quick-reference
       },