In order to make browsing to websites more secure and protect users from
cross-site request forgery attacks, Chrome, beginning with Chrome 98, will start sending a CORS preflight request, ahead of a private network request. A user monitoring Dev Tools while watching playback of HLS video will see these "preflight" messages as red. They will be immediately followed by another request for the same resource that succeeds. Follow this
link to read more about Chrome's introduction of preflights. These messages will have no affect on video playback.
