If the button does not write type=button, it will cause submission when clicked_javascript skills

There is something very strange: I clicked a button in a pop-up window, and unexpectedly the pop-up window disappeared. After debugging by the company's js master, I discovered the secret

Copy Code The code is as follows:

Add Questionnaire

Just add a type ="button":

Copy the code The code is as follows:

Add Questionnaire

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