Jquery carousal中的GIF不是惰性加载

我正在使用引导carousal，幻灯片中有一些图像需要延迟加载。 我使用的gif不是惰性加载。 我正在使用 此插件用于延迟加载 有什么问题吗。 我在控制台上没有看到任何错误

$("img.lazy").lazyload();
$('#carousel-custom').on('slide.bs.carousel', function(e) {
    $("img.lazy").lazyload();
});

和html标记

    <div id='carousel-custom' class='carousel slide' data-ride='carousel'>
    <div class='carousel-outer'>
        <!-- Wrapper for slides -->
        <div class='carousel-inner'>
            <div class='item active'>               
                <div class="container-fluid">
                    <div class="col-md-12 col-sm-12 col-xs-12 text-center lazy-img-container pull-right">
                        <img alt="img" src="/assets/gifs/icon-Engage.gif" class=" lazy" />
                        <img alt="img" src="/assets/gifs/icon-Identify.gif" class=" lazy" />
                        <img alt="img" src="/assets/gifs/icon-Profit.gif" class=" lazy" />
                    </div>
                </div>
            </div>
            <div class='item'>
                <div class="container-fluid">
                    <div class="col-md-12 col-sm-12 col-xs-12 text-center lazy-img-container pull-right">
                        <img alt="img" src="/assets/gifs/icon-Engage.gif" class=" lazy" />
                        <img alt="img" src="/assets/gifs/icon-Identify.gif" class=" lazy" />
                        <img alt="img" src="/assets/gifs/icon-Profit.gif" class=" lazy" />
                    </div>
                </div>
            </div>
            <div class='item'>
                <div class="container-fluid">
                    <div class="col-md-12 col-sm-12 col-xs-12 text-center lazy-img-container pull-right">
                        <img alt="img" src="/assets/gifs/icon-Engage.gif" class=" lazy" />
                        <img alt="img" src="/assets/gifs/icon-Identify.gif" class=" lazy" />
                        <img alt="img" src="/assets/gifs/icon-Profit.gif" class=" lazy" />
                    </div>
                </div>
            </div>
        </div>
    </div>
    <!-- Indicators -->
    <ol class='carousel-indicators'>
        <li data-target='#carousel-custom' data-slide-to='0' class='active'>
        </li>
        <li data-target='#carousel-custom' data-slide-to='1'>
        </li>
        <li data-target='#carousel-custom' data-slide-to='2'>
        </li>
    </ol>
</div>

请在此处编写代码。代码添加到问题。请在此处编写代码。代码添加到问题。