强制下载 'data:text/plain' URL [英] Force download of 'data:text/plain' URL

问题描述

我想知道是否可以强制浏览器(至少是 Chrome)下载 data:text/plain URL.

I was wondering whether it is possible to force a browser (at least Chrome) to download a data:text/plain URL.

Chrome 会下载二进制 URL(例如 data:application/zip;base64,...)，但不会下载可以在浏览器内查看的文件(例如文本文件).

Chrome does download binary URLs (e.g. data:application/zip;base64,...), but it does not download files that can be viewed inside the browser (such as text files).

到目前为止我已经尝试过但没有运气的是:

What I already tried with no luck so far is this:

data:text/plain;content-disposition=attachment;filename=test.txt;...

但好像我不能添加这样的标题.

But it seems like I cannot add headers like this.

有什么办法可以让 Chrome 下载一个 data:text/plain,... URL?

Is there any way to make Chrome download a data:text/plain,... URL?

推荐答案

截至目前，已经可以在 Chrome 中使用 .使用 dispatchEvent，您可以随时将任何字符串下载为文件(即使使用自定义文件名).这是一个使用它的实用函数:

As of now, it has been made possible to use <a download> in Chrome. Using dispatchEvent, you can download any string as file (even with a custom filename) whenever you want. Here's a utility function to use it:

var downloadFile = function(filename, content) {
  var blob = new Blob([content]);
  var evt = document.createEvent("HTMLEvents");
  evt.initEvent("click");
  $("<a>", {
    download: filename,
    href: webkitURL.createObjectURL(blob)
  }).get(0).dispatchEvent(evt);
};

用法:

downloadFile("foo.txt", "bar");

它使用 jQuery 和 webkit 前缀，但两者都可以避免.

It uses jQuery and the webkit prefix, but both can be avoided.

这篇关于强制下载 'data:text/plain' URL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！