Make the various javascript on Tor sites be LibreJS-compatible?

On reading https://www.gnu.org/software/repo-criteria.html (as pointed out on tor-talk), I came across "B0": "All code sent to the user's browser must be free software and labeled for LibreJS or other suitable free automatic license analyzer".

I don't know anything about the politics behind libre JS or the like, but I know some of the Tor sites use JavaScript, and I also know we're not meaning to keep any of it non-free.

Is there some enthusiastic free software zealot out there who wants to inventory the javascript used on various Tor sites, and move us closer to labeling it all as free?