在IE11中打开由createObjectURL创建的链接

为什么不能在以下演示中打开链接:
http://html5-demos.appspot.com/static/a.download.html

你甚至不能右键点击并在新标签页/窗口中打开它。 在我需要自定义的浏览器中是否有任何设置?


此演示使用Blob URL,由于安全限制,IE不支持该URL。

IE有自己的API来创建和下载文件,这个文件叫做msSaveOrOpenBlob

这是我的跨浏览器解决方案,适用于IE,Chrome和Firefox:

function createDownloadLink(anchorSelector, str, fileName){
    if(window.navigator.msSaveOrOpenBlob) {
        var fileData = [str];
        blobObject = new Blob(fileData);
        $(anchorSelector).click(function(){
            window.navigator.msSaveOrOpenBlob(blobObject, fileName);
        });
    } else {
        var url = "data:text/plain;charset=utf-8," + encodeURIComponent(str);
        $(anchorSelector).attr("download", fileName);
        $(anchorSelector).attr("href", url);
    }
}

$(function () {
    var str = "hi,file";
    createDownloadLink("#export", str, "file.txt");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a id="export" class="myButton" download="" href="#">export</a>

这里是将任何文件作为blob下载的功能。 (在IE和非IE上测试)

var download_csv_using_blob = function (file_name, content) {
    var csvData = new Blob([content], { type: 'text/csv' });
    if (window.navigator && window.navigator.msSaveOrOpenBlob) { // for IE
        window.navigator.msSaveOrOpenBlob(csvData, file_name);
    } else { // for Non-IE (chrome, firefox etc.)
        var a = document.createElement("a");
        document.body.appendChild(a);
        a.style = "display: none";
        var csvUrl = URL.createObjectURL(csvData);
        a.href =  csvUrl;
        a.download = file_name;
        a.click();
        a.remove();
    }
};

注意:如果需要,请更改文件的类型。


如果数据来自ajax,那么你可以添加

if (window.navigator.msSaveOrOpenBlob)
 xhttp.responseType = "arraybuffer";
else
 xhttpGetPack.responseType = "blob";

/////////////////////////////////////////////////

var a = document.createElement("a");
document.body.appendChild(a);
a.style.display = "none";

// IE
if (window.navigator.msSaveOrOpenBlob)
{
  a.onclick = ((evx) => 
  {
      var newBlob = new Blob([new Uint8Array(xhttpGetPack.response)]);
      window.navigator.msSaveOrOpenBlob(newBlob, "myfile.ts");
  });
  a.click();
}
else //Chrome and safari
{
  var file = URL.createObjectURL(xhttpGetPack.response);
  a.href = file;
  a["download"] = "myFile.ts";
  a.click();
  window.URL.revokeObjectURL(file);
}
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