Is there any way to specify a suggested filename when using data: URI?

Question

If for example you follow the link:

data:application/octet-stream;base64,SGVsbG8=

The browser will prompt you to download a file consisting of t

Answer 1

Chrome makes this very simple these days:

function saveContent(fileContents, fileName)
{
    var link = document.createElement('a');
    link.download = fileName;
    link.href = 'data:,' + fileContents;
    link.click();
}