Need help configuring HTML5LaunchHelper.exe

Hello,

I am currently trying to package a UE4.24 game file for HTML5. I’ve been following along with the documentation found on [GitHub][1] but I’m arriving at the issue:

I’m under the impression that I need to configure the HTML5LaunchHelper.exe file to be Cross-Origin-Isolated using COOP and COEP headers described [Here][3]. All the documentation I’ve found points toward a ReadMe.txt supposed to be found in the project file that instructs on how to configure the server, however it’s missing for me (seen below).

If anyone has any experience enabling cross-origin-isolation, or knows why that ReadMe.txt file is missing, any insight would be greatly appreciated.