下载文件后删除链接 [英] Remove link after file is downloaded
本文介绍了下载文件后删除链接的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在下面的代码中包含一个img和一个捕获按钮.我在下面所做的是，每当用户单击下载时，它将在此链接之前添加到我的img src https://cors-anywhere.herokuapp.com/.
I have this code below that consists of a img and a capture button. What i have done below is that whenever the user clicks on download it will prepend this link to my img src https://cors-anywhere.herokuapp.com/.
我要完成的工作是，启动下载后，我想从img src中删除该链接https://cors-anywhere.herokuapp.com/.目前，我不知道如何进行此操作，将不胜感激，谢谢！！
What i'm trying to accomplish is that after the download is launched i want to remove that link https://cors-anywhere.herokuapp.com/ from my img src. Currently i have no idea on how to go about this any help would be greatly appreciated thanks!
function sendData() {
html2canvas(document.getElementById('capture'), {
allowTaint: false,
useCORS: true
}).then(function(canvas) {
$('#testaroni').attr('src', function(index, src) {
return 'https://cors-anywhere.herokuapp.com/' + src;
});
$('#test').attr('href', canvas.toDataURL('image/png'));
$('#test').attr('download', 'Test.png');
$('#test')[0].click();
});
}
<!DOCTYPE html>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<html>
<head>
<meta charset="utf-8" />
<link rel="shortcut icon" href="//#" />
<script type="text/javascript" src="https://html2canvas.hertzen.com/dist/html2canvas.js"></script>
<script type="text/javascript" src="https://html2canvas.hertzen.com/dist/html2canvas.min.js"></script>
</head>
<body>
<div id="capture">
<div class="jobs-panel">
<img id="testaroni" data-target="#openly" src="https://cdn.bulbagarden.net/upload/thumb/4/49/Ash_Pikachu.png/250px-Ash_Pikachu.png" width="300" height="300">
</div>
</div>
<button type="button" onclick="sendData()" ;>Capture!</button>
<a id="test" href="#"></a>
</body>
</html>
推荐答案
您可以这样做:
var flag = true;
function sendData() {
html2canvas(document.getElementById('capture'), {
allowTaint: false,
useCORS: true
}).then(function(canvas) {
$('#testaroni').attr('src', function(index, src) {
return 'https://cors-anywhere.herokuapp.com/' + src;
});
if(flag == true)
{
$('#test').attr('href', canvas.toDataURL('image/png'));
$('#test').attr('download', 'Test.png');
$('#test')[0].click();
$('#testaroni').attr('src','https://cdn.bulbagarden.net/upload/thumb/4/49/Ash_Pikachu.png/250px-Ash_Pikachu.png');
flag = false;
}
})
}
这篇关于下载文件后删除链接的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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