我无法使用新的Twitter Bootstrap版本：Bootstrap 4 alpha在远程模式下使用Modal。它在Bootstrap
3上运行良好。在Bootstrap 4下，我正在弹出窗口，但是没有加载模型主体。没有进行远程调用myRemoteURL.do来加载模型主体。

码：

<button type="button" data-toggle="modal" data-remote="myRemoteURL.do" data-target="#myModel">Open Model</button>

<!-- Model -->
<div class="modal fade" id="myModel" tabindex="-1"
    role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal"
                    aria-label="Close">
                    <span aria-hidden="true">&times;</span>
                </button>
                <h3 class="modal-title" id="myModalLabel">Model Title</h3>
            </div>
            <div class="modal-body">
                <p>
                    <img alt="loading" src="resources/img/ajax-loader.gif">
                </p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
                <button type="button" class="btn btn-primary">Submit</button>
            </div>
        </div>
    </div>
</div>