Watcher compiling react file fails after detecting js error.

[Heegiiny]

Just after executing npm start, webpack watchs for js files and recompiles them on updating. If I start server and change a text in some file, everything works fine and after reloading the page in web browser, I see the typed text. But if js files contain an error, watching stops and after that no change in code affects the app in browser before I reboot.