/usr/lib/ghc-doc/hoogle/webkit.txt is in libghc-webkit-doc 0.12.3-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-webkit-doc/html/webkit.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-webkit-doc/html/webkit.txt