Mac users had long complained that Chrome drained battery life and caused kernel panics. Chrome 57.0 addressed this by reducing the number of "short timers" that wake the CPU. Users reported an average of on MacBooks running macOS 10.11 and 10.12.
Chrome 57.0 introduced a heavy-duty throttling mechanism. It limited the timer wake-ups for background tabs to once per minute. This meant that if a tab was not the active window, its ability to request processing power was severely restricted. chrome 57.0
Can't add Authorization on Request Header with Chrome 57.0.2987 Mac users had long complained that Chrome drained
On mobile devices, background timers are completely suspended automatically after five minutes. chrome 57.0