The same code as the teacher, but there is no response when clicking the button.

Question

The same code as the teacher, there is no response when clicking the button.

The status of test.html when opened for the first time is 200. After refreshing, it is 304.

The server prompts GET http://www.ajaxdemo.com/favicon.ico 500 (Internal Server Error)

Answer 1

The above error, I followed the online processing method and the error was not reported. GET http://www.ajaxdemo.com/favicon.ico 500 (Internal Server Error)

Now it is Still nothing happens when I click the button.