fix($hmr): Support arbitrary origins in publicPath.
fix($hmr): Support arbitrary origins in publicPath.

If the Webpack publicPath contains "http:" or "https:", treat it as the
base URL for newly-loaded
assets. Otherwise, continue to use the current window's location.

Fixes #25.

faceyspacey/extract-css-chunks-webpack-plugin,brightbytes/extract-css-chunks-webpack-plugin,faceyspacey/extract-css-chunks-webpack-plugin,brightbytes/extract-css-chunks-webpack-plugin