Javascript detect when file is downloaded

A collection of browser-based side channel attack vectors. - xsleaks/xsleaks

javascript detect file download dialog (11) A quick solution if you only want to display a message or a loader gif until the download dialog is displayed is to put the message in a hidden container and when you click on the button that generate the file to be downloaded you make the container visible. Hello , there is any way to detect if the file download complete ? Or you can detect it on the client-side (in the browser) using JavaScript.

Features. Everything you need in a JavaScript file upload library Fortunately, Fine Uploader can detect these sorts of disturbances and notify the user, or even 

Detect Adblock is the easiest & most effective way for detecting visitors to your website who are using an adblocker. And best of all, it's completely free. JavaScript