Updated by Soren Stoutner over 1 year ago
It looks like this will be possible in Qt 6 with https://doc.qt.io/qt-6/qml-qtwebengine-webengineview.html#loadingChanged-signal
I am not sure there is a way to do it in Qt 5.
Updated by Soren Stoutner 8 months ago
I was incorrect. It is under Qt WebEnginePage.