File is not attached to <input type="file"> or javascript triggered

[olliekav]

So I have a basic HTML page in a QTWebengine view, with a form that contains an <input type="file">. Form submission works fine but I cannot attach a file to the form. I'm presented with the permissions window (on MacOS) to access the current folder but when selecting a file it is not attached. The javascript change event is never triggered either...

document.querySelector('.form__input--file');
fileInput.addEventListener('change', function(e) {
if(fileInput.files && fileInput.files[0]) {
...
}
});

I've tried playing with the various security settings, --disable-web-security and...

settings.allowRunningInsecureContent: true
settings.allowWindowActivationFromJavaScript: true
settings.localContentCanAccessRemoteUrls: true
settings.localContentCanAccessFileUrls: true

with no success. I'm struggling to find any documentation around this and wondering if it is even possible? This is on QT 5.14.2

[olliekav]

Digging into this a little bit more, drag & drop onto the file input works fine, but not the base functionality which feels like a bug?