listen 0.0.0.0 instead of localhost

[akireikin]

Problem

Although there is no Docker requirements in the tutorial, many developers prefer to use Docker running their apps inside separated containers.

docker run -it -v $(pwd):/var/www/learn-redux -w /var/www/learn-redux -p 7770:7770 node npm start

Unfortunately web server cannot be accessed while running inside Docker container.

Solution

webpack/webpack-dev-server#183 (comment)