Hands-On GUI Programming with C++ and Qt5

Sessions, cookies, and cache

Just like any other web browser, the WebEngine module also supports mechanisms used to store temporary data and persistent data for session and cache. Sessions and cache are very important as they allow websites to remember your last visit and associate you with data, such as a shopping cart. The definitions of a session, a cookie, and a cache are shown as follows:

• Session: Normally, sessions are server-side files that contain user information with a unique identifier, which gets sent from the client side to map them to a specific user. In Qt, however, a session simply means a cookie that doesn't have any expiration date, and hence it will be gone when the program is closed.
• Cookie: Cookies are client-side files ...