I wrote a plugin for html-webpack-plugin. The plugin is called html-link-injection. With this plugin, you can insert some link tags into a html which is generated by html-webpack-plugin.
Test code for this plugin
I came to almost end of development, I checked html-webpack-plugin document again. I noticed that I could control tags insertion position with html-webpack-plugin option. If you use this option, you would get same result without this plugin. I might reinvent the wheel. I regret that I investigate the document about html-webpack-plugin well. It satisfied me to understand webpack and html-webpack-plugin well.
You can use html-link-injection from npm.