【报错解决】vue打开界面报错Uncaught SecurityError: Failed to construct ‘WebSocket‘

问题描述：

vue运行时正常，但是打开页面后报错

Uncaught SecurityError: Failed to construct 'WebSocket': An insecure WebSocket connection may not be initiated from a page loaded over HTTPS.

 解决方案：

在项目列表中的public下的index.html里添加以下内容即可

 <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests" />