Why doesn't webpack always pull changes?

Question

JavaScript

I set up the assembly of webpack and react. I am doing according to this material https://maxfarseer.gitbooks.io/redux-course-ru/content/ , but in the end everything leads to the fact that webpack does not pull changes in files or pulls every other time (what could be wrong? the console by the way the error falls The connection to localhost:3000/__webpack_hmr was interrupted while the page was loading.

Answer 1

Bug in the mozilla?
ps there, hot reload is not configured for all files, it seems to be only for react-components, and for reducers