Jcrop在特定服务器上的IE8下失败，在另一服务器上工作

Question

[在我们的登台服务器上Jcrop出现问题，但在生产中可以正常工作。

两个环境都在相同的硬件上运行，因此设置了apache虚拟主机。据我们所知，环境是相同的。以下是模式框中的代码，该代码在选择要上传的图片后加载。

<?php $jsIncludes = array(
    "jQuery-File-Upload-and-Crop-plugin/js/vendor/jquery.ui.widget",
    "jQuery-File-Upload-and-Crop-plugin/js/jquery.iframe-transport",
    "jQuery-File-Upload-and-Crop-plugin/js/jquery.Jcrop",
    "jQuery-File-Upload-and-Crop-plugin/js/canvas-to-blob.min",
    "jQuery-File-Upload-and-Crop-plugin/js/load-image.min",
    "jQuery-File-Upload-and-Crop-plugin/js/main"
    );
echo $this->html->script($jsIncludes); 
?>
<link rel="stylesheet" href="/js/jQuery-File-Upload-and-Crop-plugin/css/jquery.Jcrop.css" type="text/css" />
<!-- CSS to make adjusments to some layouts of JQ FURAC -->
<link rel="stylesheet" href="/js/jQuery-File-Upload-and-Crop-plugin/css/jquery.furac.ui.css"> 
<style>
.modal-image-scroll {
    height:420px;
    overflow:auto;
    overflow-x:hidden;
}
</style>

<!-- modal-gallery is the modal dialog used for the image gallery -->
<div id="modal-gallery" class="modal modal-gallery hide fade" data-filter=":odd">
    <div class="modal-header">
        <a class="close" data-dismiss="modal">&times;</a>
        <h3 class="modal-title">Image Upload and Crop</h3>
    </div>
    <div class="modal-body"><div class="modal-image"></div></div>
    <div class="modal-footer">
        <form id="opCrop">
<!--            <button class="btn modal-crop" type="button" id="startResize">
                <i class="icon-resize-horizontal"></i>
                Resize to:
            </button> -->
            <a class="btn modal-crop" target="_blank" id="startCrop">
                <i class="icon-th"></i>
                <span>Crop Image to:</span>
            </a>
            <label for="inWidthCrop">Width</label> <input type="number" readonly name="widthCrop" id="inWidthCrop" value="">
            <label for="inHeightCrop">Height</label> <input type="number" readonly name="heightCrop" id="inHeightCrop" value="">

<!--             <button type="reset" class="btn btn-warning cancel">
                    <i class="icon-ban-circle icon-white"></i>
                    Clear
                </button> -->
        </form>
    </div>
</div>
<!-- modal for cropping -->
<div id="croppingModal" class="modal hide">
    <div class="modal-header">
        <button type="button" id="btnCloseCrop" class="close" data-dismiss="modal">×</button>
        <h3>Crop Image <span class="dimentions"></span></h3>
    </div>
    <div class="modal-body">

    </div>
    <br />
    <div class="alert alert-info" style="font-size: 12px; padding: 4px 10px 4px 10px;">
        Click and drag over the area of the phone you'd like to use as your profile picture.
    </div>
    <div class="modal-footer">
        <a href="#" class="btn closeModal" data-dismiss="modal" id="btnCancelCrop">Cancel</a>
        <a href="#" class="btn btn-primary" id="btnDoCrop">Crop</a>
    </div>
</div>

任何人都知道为什么这可能在一种环境下可行而在另一种环境下无效？

该网站正在使用该库：https://github.com/baamenabar/jQuery-File-Upload-and-Crop

我们最终在IE8下的过渡环境中得到的是正确裁剪的图像，但是无论源图像如何，它都是黑色的。

Answer 1

[这是一个旧的未解决的问题，但万一有人来自Google搜索，答案是不必担心IE8。死了如果客户需要IE8支持，请向客户显示一条消息，告知他们需要下载现代浏览器。