Back button click Android not registered in Qt Webview

[Ramonn]

I am creating a small Android application in Qt 5.10. The application consists of a main.qml that holds a Qt StackView. In this StackView one Qt Flickable page is defined with a button on it to navigate to a new page, which is a Qt WebView. After navigation, this WebView will load a local HTML page. But when I hit the Android back button on the second page the app will not navigate back to the first one. See the code below for more information.

main.qml

import QtQuick 2.10
import QtQuick.Controls 2.2

ApplicationWindow {
    id: appWindow
    visible: true

    StackView {
        id: navPane
        anchors.fill: parent
        initialItem: pageOne

        Keys.onBackPressed: {
            popOnePage()
        }

        function popOnePage() {
            if(navPane.depth == 1)
                return
            pop()
        }

        function pushOnePage(pageComponent) {
            push(pageComponent)
        }
    }

    Component {
        id: pageOne
        PageOne {}
    }

    Component {
        id: pageTwo
        PageTwo {}
    }
}

PageOne.qml

import QtQuick 2.10
import QtQuick.Controls 2.2

Flickable {

    Button {
        text: "Go to page 2"
        anchors.centerIn: parent

        onClicked: {
            navPane.pushOnePage(pageTwo)
        }
    }
}

PageTwo.qml

import QtQuick 2.10
import QtWebView 1.1

WebView {
    id: webView
    url: initialUrl //link to local HTML file
}

After some debugging I found out that the Keys.onBackPressed signal is never received. But when I use a Flickable instead of a WebView the signal will be received and the navigation works as expected. Can someone tell me if it is possible to receive this signal while using a WebView or maybe tell me what I am doing wrong? It will also do for me if there exists another component that can work with HTML. Any help would be greatly appreciated!