/usr/share/horde/ansel/js/cropper.js is in php-horde-ansel 3.0.5+debian0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/horde/ansel/js/../../../javascript/cropper/cropper.js
/usr/share/horde/ansel/js/../../../javascript/cropper/cropper.js