I've installed everything what I need (webpack, webpack-server), confingured my webpack.config.js and package.json, still the localhost:8080 does not render on safe. Neither does it render on localhost:8080/webpack-dev-server/index.html on safe. On manual reload it renders perfectly.
npm run dev executes successfully but I also have to reload the page manually after I make some changes in my index.html which is in the parent folder. Also, I always have to run webpack manually in my cmd when I change my .js file. Hot loading should also take care of this if I'm correct.
Let me also add that the app is recompiling when I run CTRL+s but it doesn't actually recompile.
I had a similar problem with live reloading on changes. Try to change link to bundle.js in your index.html
If you look in console output after npm start there will be same like
webpack output is served from /
Dev-server takes bundle from root directory of your project, not from /js/bundle.js