[FIXED] "Fullscreen is unavailable" embedding YouTube videos as iframe in QWebEngineView

Issue

I'm trying to embed a youtube video in a QWebEngineView, the video loads fine but the fullscreen button is disabled with this message "Fullscreen is unavailable" even thought the embed code does have "allowfullscreen"

Code snippet:

web = QWebEngineView()
htmlString = """
            <iframe width="560" height="315" src="https://www.youtube.com/embed/L0MK7qz13bU?rel=0&amp;showinfo=0" frameborder="0" allowfullscreen></iframe>
             """
web.setHtml(htmlString, QUrl(baseUrl))

Solution

To enable the full screen it is necessary to enable the FullScreenSupportEnabled attribute and accept the fullScreenRequested order of the page.

if __name__ == '__main__':
    app = QApplication(sys.argv)
    web = QWebEngineView()
    web.settings().setAttribute(QWebEngineSettings.FullScreenSupportEnabled, True)
    web.page().fullScreenRequested.connect(lambda request: request.accept())
    baseUrl = "local"
    htmlString = """
            <iframe width="560" height="315" src="https://www.youtube.com/embed/L0MK7qz13bU?rel=0&amp;showinfo=0" frameborder="0" allowfullscreen></iframe>
             """
    web.setHtml(htmlString, QUrl(baseUrl))

    web.show()
    sys.exit(app.exec_())

Screenshot:

Answered By - eyllanesc