May I ask why the file I quoted failed?

Question

状态码：304 Not Modified

<link ref="stylesheet" href="/static/css/bootstrap.min.css">
<script src="/static/js/jquery-3.3.1.min.js"></script>
<script src="/static/js/bootstrap.min.js"></script>

Answer 1

Could you please remove the diagonal bar near href= or add a dot in front?