WebSocket打不开localhost:3000，页面提示Upgrade Required

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#1 Created at ... [Delete] [Delete and Lock User]

WebSocket打不开localhost:3000，页面提示Upgrade Required，response，status返回426.请问该怎么解决！求解答！感谢！

#2 Created at ... [Delete] [Delete and Lock User]

我发现了。误解了老师的意思，并不是打开localhost:3000，而是在当前页面操作。还有老师现在的网址是https，如果

var ws = new WebSocket('ws://localhost:3000/test');

Chrome会自动替换成'wss://localhost:3000/test' ，就会报错。所以找一个http的网址测试才可以。