问在本地主机上运行示例时，导航栏未展开

EN

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title><%= typeof name !== "undefined" ? name : "Error" %></title>
    <meta name="description" content="Boilerplate HTML Page">
    
    <script src="/js/jquery.js"></script>
    <script src="/js/bootstrap.min.js"></script>

    <link rel="stylesheet" href="/css/bootstrap.min.css">
    
</head>



<body>
    
    <nav class="navbar navbar-expand-lg navbar-dark bg-dark">
        <div class="container-fluid">
            <a class="navbar-brand" href="#">Express Demo</a>
            <button onclick="" class="navbar-toggler" type="button" data-bs-toggle="collapse" 
                    data-bs-target="#navbarNav" aria-controls="navbarNav" 
                    aria-expanded="false" aria-label="Toggle navigation">
                <span class="navbar-toggler-icon"></span>
            </button>
            <div class="collapse navbar-collapse" id="navbarNav">
                <ul class="navbar-nav">
                    <li class="nav-item">
                        <a class="nav-link" aria-current="page" href="/">Home</a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link" href="/rand" >Random</a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link" href="/r/chickens">Chickens</a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link" href="/r/soccer">Soccer</a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link" href="/r/mightyharvest">MightyHarvest</a>
                    </li>
                    
                </ul>
            </div>
        </div>
    </nav>

    <h1>Browsing r/<%= typeof name !== "undefined" ? name : "Error"%></h1>
    <h2><%= description %></h2>
    <p>Sub count: <%= subscribers %></p>
    
    <hr>
    
    <% for(let post of posts) { %>
        <article>
            <p><%=post.title%> - <b><%= post.author %></b></p>
            <% if (post.img) { %>
                <img src="<%= post.img %>" alt="">
            <% } %>
        </article>
    <% } %>
    
</body>
</html>