Chrome prevent computer from sleep on Windows 8

1). Open Command Prompt as Administrator and run the following command:

C:\Windows\system32>powercfg /requests
DISPLAY:
None.
SYSTEM:
[DRIVER] Cirrus Logic CS4206B (AB 28) (HDAUDIO\FUNC_01&VEN_1013&DEV_4206&SUBSYS_
106B1C00&REV_1003\4&6062198&0&0001)
An audio stream is currently in use.
AWAYMODE:
None.
EXECUTION:
[PROCESS] \Device\HarddiskVolume3\Program Files (x86)\Google\Chrome\Application\
chrome.exe
WebRTC has active PeerConnections
PERFBOOST:
None.

2). Override Chrome Power Request

powercfg /requestsoverride PROCESS chrome.exe AWAYMODE DISPLAY SYSTEM

To remove the override for Chrome,

powercfg /requestsoverride PROCESS chrome.exe

To check the current list of power request overrides,

powercfg /requestsoverride

Reference

https://techjourney.net/chrome-prevents-windows-from-going-into-sleep-standby-or-hibernation-mode/