There is an add-on for Mozilla Firefox called GNU LibreJS. This is a good tool
for users who wish to block non free javascript from running. We can make
GNUKhata LibreJS compliant. This can be done after this release as we will need
to spend time understanding how LibreJS works and figure out what changes we
need to make. On first look it seems we simply need to explicitly site license
of libraries but let us do more reading and discussions. I am sharing a link
from where you can access official documentation.
https://www.gnu.org/software/librejs/manual/ ;
(https://www.gnu.org/software/librejs/manual/)