网站适用于某些浏览器但不是全部

Question

为什么我的网站可以在我的手机上工作但不在我的电脑上我尝试了所有的IE Chrome Fire狐狸我似乎无法从div下载图像但是当我使用我的手机它工作正常（仅限chome）。怎么了？这是我的网站https://torcdesign.com/mom，有人可以帮助我找到适合所有浏览器的解决方案

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var download = document.getElementById("download"),
		result = document.getElementById("result");

function renderContent() {
    html2canvas(document.getElementById("content"), {
        allowTaint: true
    }).then(function(canvas) {
    		result.appendChild(canvas);
        download.style.display = "inline"; download.href = result.children[0].toDataURL();
    });
}

function downloadImage() {
		
}

document.getElementById("button").onclick = renderContent;
download.onclick = downloadImage

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#content {
    position: absolute;
    width: 300px;
    height: 200px;
    border: 5px solid red;
    overflow: hidden;
}

#img1 {
    width: 300px;
    height: 200px;
    position: absolute;
    z-index: 5;
}

#img2 {
    position: absolute;
    z-index: 6;

    width: 150px;
    height: 190px;
}

#img3 {
    position: absolute;
    z-index: 7;
    width: 200px;
    height: 100px;
}

#download {
    display: none;
}

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<script src="https://rawgit.com/niklasvh/html2canvas/master/dist/html2canvas.min.js"></script>

<div id="content">
    <img id="img1" src="https://torcdesign.com/shirts/brown.jpg">
    <img id="img2" src="https://torcdesign.com/shirts/kiwi.jpg">
    <img id="img3" src="https://torcdesign.com/shirts/lswhite.jpg">   
</div>
<br><br><br><br><br><br><br><br><br><br><br><br>
<input id="button" type="button" value="convert div to image"><br>
<h3>result:</h3>
<div id="result"></div>
<a id="download" download="my_image.png" href="#">Download image</a>

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Answer 1

我认为您可能需要更新大多数浏览器。根据{{​​3}}，不同浏览器的不同版本支持download标记的a属性。