/usr/share/doc/libtntdb-dev/html/jquery.js is in libtntdb-dev 1.3-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libtntdb-dev/html/../../../javascript/jquery/jquery.js
/usr/share/doc/libtntdb-dev/html/../../../javascript/jquery/jquery.js