404 django中弹出模式表单错误

# views.py
from django.shortcuts import render
from .forms import MyForm

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            # 处理表单数据
            pass
    else:
        form = MyForm()
    
    return render(request, 'my_template.html', {'form': form})

# my_template.html
<form method="post" action="{% url 'my_view' %}">
    {% csrf_token %}
    <!-- 表单内容 -->
    <button type="submit">提交</button>
</form>

<!-- 模态框 -->
<div id="myModal" class="modal">
    <div class="modal-content">
        <span class="close">&times;</span>
        <div id="modal-errors"></div>
    </div>
</div>

<script>
    // 当模态框显示时，将错误信息显示在模态框中
    function showModalErrors(errors) {
        var modal = document.getElementById("myModal");
        var modalErrors = document.getElementById("modal-errors");
        modalErrors.innerHTML = errors;
        modal.style.display = "block";
    }
    
    // 关闭模态框
    var closeBtn = document.getElementsByClassName("close")[0];
    closeBtn.onclick = function() {
        var modal = document.getElementById("myModal");
        modal.style.display = "none";
    }
</script>