Added explanation for isBrowserActive code
Added explanation for isBrowserActive code

Honoo/HubTurbo,gaieepo/HubTurbo,saav/HubTurbo,Honoo/HubTurbo,ianngiaw/HubTurbo,HyungJon/HubTurbo,HyungJon/HubTurbo,Sumei1009/HubTurbo,Sumei1009/HubTurbo,gaieepo/HubTurbo,ianngiaw/HubTurbo,saav/HubTurbo