Saving text in a local file in Internet Explorer 10

Question

I need to be able to save a string into a local file. Based on the code in here I got the following going:

function saveTextAsFile(fileNameToSaveAs, textToWrite) { var textFileAsBlob = new Blob([textToWrite], {     type: 'text/plain' });  var downloadLink = document.createElement("a"); downloadLink.download = fileNameToSaveAs; downloadLink.innerHTML = "Download File";  if (true) { //window.webkitURL !== null) {     // Chrome allows the link to be clicked     // without actually adding it to the DOM.     downloadLink.href = window.URL.createObjectURL(textFileAsBlob); } else {     // Firefox requires the link to be added to the DOM     // before it can be clicked.     downloadLink.href = window.URL.createObjectURL(textFileAsBlob);     downloadLink.onclick = destroyClickedElement;     downloadLink.style.display = "none";     document.body.appendChild(downloadLink); }  downloadLink.click(); } 

This works fine for Chrome and Firefox, but not for Internet Explorer 10 as

downloadLink.click(); 

gives:

SCRIPT5: Access is denied. 

Is there any explanation/solution to this ?

thanks!

Answer 1

IE 10 and 11 use a distinct syntax for downloading or saving blobs to the client machine. Once you've created a blob, use:

window.navigator.msSaveBlob(blob, 'file.txt');  

or

window.navigator.msSaveOrOpenBlob(blob, 'file.txt'); 

to trigger the file save or file save/open dialog.

For more info, see http://msdn.microsoft.com/en-us/library/ie/hh673542(v=vs.85).aspx

Answer 2

Thx to mstubna, here is a solution for Chrome, FF, and IE>9:

function saveTextAsFile(fileNameToSaveAs, textToWrite) {   /* Saves a text string as a blob file*/     var ie = navigator.userAgent.match(/MSIE\s([\d.]+)/),       ie11 = navigator.userAgent.match(/Trident\/7.0/) && navigator.userAgent.match(/rv:11/),       ieEDGE = navigator.userAgent.match(/Edge/g),       ieVer=(ie ? ie[1] : (ie11 ? 11 : (ieEDGE ? 12 : -1)));    if (ie && ieVer<10) {     console.log("No blobs on IE ver<10");     return;   }    var textFileAsBlob = new Blob([textToWrite], {     type: 'text/plain'   });    if (ieVer>-1) {     window.navigator.msSaveBlob(textFileAsBlob, fileNameToSaveAs);    } else {     var downloadLink = document.createElement("a");     downloadLink.download = fileNameToSaveAs;     downloadLink.href = window.URL.createObjectURL(textFileAsBlob);     downloadLink.onclick = function(e) { document.body.removeChild(e.target); };     downloadLink.style.display = "none";     document.body.appendChild(downloadLink);     downloadLink.click();   } }