I'm trying to let the user download some data as a CSV (text) file, using Javascript and the HTML5 Download attribute (http://caniuse.com/#feat=download).

The data is formed in an array, and then added to a new Blob object.

It works perfectly in Chrome and Opera, but does not work at all in Firefox.

Original example I am attempting to copy: http://blog.eliacontini.info/post/79860720828/export-to-csv-using-javascript-the-download-attribute

Fiddle: http://jsfiddle.net/8wos7cf8/5/

Javascript:

$('#downloadButton').click(function () {

// some data to export

var data = [{

    title: Book title 1,

    author: Name1 Surname1

}, {

    title: Book title 2,

    author: Name2 Surname2

}, {

    title: Book title 3,

    author: Name3 Surname3

}, {

    title: Book title 4,

    author: Name4 Surname4

}];



// prepare CSV data

var csvData = new Array();

csvData.push('Book title,Author');

data.forEach(function (item, index, array) {

    csvData.push('' + item.title + ',' + item.author + '');

});



// download stuff

var fileName = data.csv;

var buffer = csvData.join(n);

var blob = new Blob([buffer], {

    type: text/csv;charset=utf8;

});

var link = document.createElement(a);



if (link.download !== undefined) { // feature detection

    // Browsers that support HTML5 download attribute

    link.setAttribute(href, window.URL.createObjectURL(blob));

    link.setAttribute(download, fileName);

    link.click();

} else {

    alert('CSV export only works in Chrome, Firefox, and Opera.');

}

});

HTML:

<div class=toggle-button id=downloadButton><span>Export to CSV</span></div>

When I add an alert with:

alert(window.URL.createObjectURL(blob));

I get this result in Firefox:

...and this result in Chrome/Opera:

So it seems like it omits the URL path in Firefox for some reason.