In the case when cluster is built upon network isolated from internet,
First-time loading of UI takes about 25 seconds. Where 15 seconds browser spent
on waiting while request for /ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js
JQuery was added to static resources in scope of
DRILL-5699, but dependency on
google's cdn wasn't fully removed. So the static resource was added as a fallback . I guess the main reason why fallback solution was applied is that there is a
higher probability that library from google's mdn may be found & loaded from browser's cache.
Unfortunately this graceful solution doesn't work for really isolated environment, that's
why we need to fully remove the /ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js dependency.