Before I can update the doc pages, Abhishek Jindal we need the commands to fix a) MacOS and also b) PC/Windows

NOTE: In versions 6.5.0, 6.5.1, and 6.6.0 users might experience bug MB-41508 a Chrome "WebSocket Disconnected" when debugging Eventing functions that call either toLocaleString() or Intl.DateTimeFormat.  Essentially the file "icudtl.dat" which provides support for International Components for Unicode (ICU) is not in the needed location. The following step (copying the Chrome "icudtl.dat" file) is necessary only for development / staging clusters as users aren't expected to spawn a debugger in a live production environment.

• Linux
  cp -p /opt/couchbase/bin/icudtl.dat /opt/couchbase/var/lib/couchbase 
• MacOS
  ????
  cp -p /Applications/Couchbase\ Server.app/Contents/Resources/couchbase-core/bin/icudtl.dat /Users/$USER/Library/Application\ Support/Couchbase/
• PC/Windows
  ????

I figured out the needed macOS file location by running the following to get the current working 'path' of the eventing-consumer 

lsof -a -d cwd | grep -i eventing

In my case it was, note the user name in a macOS shell can be $USER

/Users/jonstrabala/Library/Application Support/Couchbase

Thus for macOS the proper copy/fix for  MB-41508 seems to be 

• MacOS
  cp -p /Applications/Couchbase\ Server.app/Contents/Resources/couchbase-core/bin/icudtl.dat /Users/$USER/Library/Application\ Support/Couchbase/

Still need the equivalent WIndows file system copy command.

The above is in the 6.6 Eventing documentation, but we need the final update for PC/Windows before we can do the BP to 6.5 docs and this ticket.