The development server has disconnected. Refresh the page if necessary.

Created by: QUEAHREN

The problem occurs on the login page. Whenever I open the browser for the first time, I click the login button, which will not respond to the button event, and the corresponding function content is not executed at all. At this time, the page will be refreshed automatically, and the following contents will be output on the console: The development server has disconnected. Refresh the page if necessary. webpackHotDevClient.js:76

Then click the login button again. The event can be triggered normally at this time. In addition, after normal login, log out and return to the login page. At this time, click the login button again and it can still be used normally. And if there are multiple browser windows, this problem will not exist.