minor feature: a hang when denying a window.open using setWindowOpenHandler when nativeWindowOpen: false. #29882 (Also in 12, 14).an where dropdown menus did not work in DevTools when contextIsolation was enabled. #29885 (Also in 14).an where request headers were cleared if the optional "requestHeaders" parameter was not included in the webRequest.onBeforeSendHeaders callback response object. #29836 (Also in 12, 14).an where the setAlwaysOnTop value would sometimes not be preserved for child windows on macOS. #29956 (Also in 12, 14).Crashes on macOS when Geolocation was used. #29912 (Also in 14).Updated Chromium to 91.0.4472.124. #29774.