fix: setup issues + webpack improvements

dev/templates/master.pug

@@ -24,6 +24,40 @@ html
     //- CSS
     link(type='text/css', rel='stylesheet', href='https://fonts.googleapis.com/icon?family=Roboto:400,500,700|Source+Code+Pro:400,700|Material+Icons')
     link(type='text/css', rel='stylesheet', href='https://cdnjs.cloudflare.com/ajax/libs/material-design-iconic-font/2.2.0/css/material-design-iconic-font.min.css')
+    <% for (var index in htmlWebpackPlugin.files.css) { %>
+      <% if (htmlWebpackPlugin.files.cssIntegrity) { %>
+    link(
+      type='text/css'
+      rel='stylesheet'
+      href='<%= htmlWebpackPlugin.files.css[index] %>'
+      integrity='<%= htmlWebpackPlugin.files.cssIntegrity[index] %>'
+      crossorigin='<%= webpackConfig.output.crossOriginLoading %>'
+    )
+      <% } else { %>
+    link(
+      type='text/css'
+      rel='stylesheet'
+      href='<%= htmlWebpackPlugin.files.css[index] %>'
+    )
+      <% } %>
+    <% } %>
+
+    //- JS
+    <% for (var index in htmlWebpackPlugin.files.js) { %>
+      <% if (htmlWebpackPlugin.files.cssIntegrity) { %>
+    script(
+      type='text/javascript'
+      src='<%= htmlWebpackPlugin.files.js[index] %>'
+      integrity='<%= htmlWebpackPlugin.files.jsIntegrity[index] %>'
+      crossorigin='<%= webpackConfig.output.crossOriginLoading %>'
+      )
+      <% } else { %>
+    script(
+      type='text/javascript'
+      src='<%= htmlWebpackPlugin.files.js[index] %>'
+      )
+      <% } %>
+    <% } %>
 
     block head