How to enable web notifications in QtWebEngine?

Question

Python

from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEnginePage

Loading HTML which, when opened in a browser, asks for permission to send web notifications.

self.page = QWebEnginePage()
        self.page.Notifications = True
        self.page.setHtml(html)

using
messaging.requestPermission

But if you run html-ku in WebEngine, then the page itself with scripts is loaded, but the request is not displayed.

How to set the resolution of this from the back side?
Notification.permission
gives denied.

Answer 1

class WebEnginePage(QWebEnginePage):
    def __init__(self, *args, **kwargs):
        QWebEnginePage.__init__(self, *args, **kwargs)
        self.featurePermissionRequested.connect(self.onFeaturePermissionRequested)

    def onFeaturePermissionRequested(self, url, feature):
        if feature == WebEnginePage.Notifications:
            self.setFeaturePermission(url, feature, QWebEnginePage.PermissionGrantedByUser)
        else:
            self.setFeaturePermission(url, feature, QWebEnginePage.PermissionDeniedByUser)

view = QWebEngineView()
page = WebEnginePage()
view.setPage(page)
view.load(QUrl("https://"))
page.setHtml(html)
view.show()