This prompt gives too little information. If you are a front-end developer, I suggest you open the chrome console and see if there is an error message like the following: WebSocket handshake: Unexpected response code: 404 - I also saw the close above when I started learning, and then I opened the console and saw this problem: there was a problem with websocket during initialization, which is the three-way handshake
The first idea is: Is the path wrong? Then check the space problem in the front and backend. Then check all the path problems and you can run The answer on stackoverflow is another answer: http: //stackoverflow.com/ques...
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
This prompt gives too little information.
If you are a front-end developer, I suggest you open the chrome console and see if there is an error message like the following: WebSocket handshake: Unexpected response code: 404 -
I also saw the close above when I started learning, and then I opened the console and saw this problem: there was a problem with websocket during initialization, which is the three-way handshake
The first idea is: Is the path wrong? Then check the space problem in the front and backend. Then check all the path problems and you can run
The answer on stackoverflow is another answer: http: //stackoverflow.com/ques...
Check the status
php xxx.php status
Check the exit_status status code
Then see if an exception is thrown