/usr/include/x86_64-linux-gnu/qt5/QtWebSockets/QWebSocketCorsAuthenticator is in libqt5websockets5-dev 5.7.1~20161021-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | #include "qwebsocketcorsauthenticator.h"
|