diff -r 5dfa59f73de3 -r 9c72f9bc9d72 eric7/WebBrowser/WebBrowserWindow.py --- a/eric7/WebBrowser/WebBrowserWindow.py Sat Oct 16 20:36:57 2021 +0200 +++ b/eric7/WebBrowser/WebBrowserWindow.py Sat Oct 16 20:37:32 2021 +0200 @@ -652,13 +652,10 @@ QWebEngineSettings.WebAttribute.DnsPrefetchEnabled, Preferences.getWebBrowser( "DnsPrefetchEnabled")) - - with contextlib.suppress(AttributeError, KeyError): - # Qt 5.13 - settings.setAttribute( - QWebEngineSettings.WebAttribute.PdfViewerEnabled, - Preferences.getWebBrowser( - "PdfViewerEnabled")) + settings.setAttribute( + QWebEngineSettings.WebAttribute.PdfViewerEnabled, + Preferences.getWebBrowser( + "PdfViewerEnabled")) def __initActions(self): """