Handle file download from ajax post

Question

I have a javascript app that sends ajax POST requests to a certain URL. Response might be a JSON string or it might be a file (as an attachment). I can easily detect Content

Answer 1

To get Jonathan Amends answer to work in Edge I made the following changes:

var blob = typeof File === 'function'
    ? new File([this.response], filename, { type: type })
    : new Blob([this.response], { type: type });

to this

var f = typeof File+"";
var blob = f === 'function' && Modernizr.fileapi
    ? new File([this.response], filename, { type: type })
    : new Blob([this.response], { type: type });

I would rather have posted this as a comment but I don't have enough reputation for that