I have a html5 application that makes use of the file API, using an element. I am able to respond when the user selects a file. I would like to be able to do something if the u
I have the same question, the solution is surprisingly very easy ... at least in my case NW.js (Node-Webkit) fires oncancel event if user click the [cancel] button in the file chooser dialogue. You use this simple and native way if you're also on NW.js (process.version is v5.11.0).
I also tried Microsoft HTA on Windows 10, it does not fire the oncancel event.