Zsh, 51 bytes
g()<<<${(j::)${(os::)1:l}// }
<<<${$(g $1)/$(g $2)}
Similar to my other anagram solution, again using Zsh's gnarly parameter expansion. Added a few bits to lowercase everything and parse out spaces.
g()<<<${(j::)${(os::)1:l}// }
<<<${$(g $1)/$(g $2)}
Similar to my other anagram solution, again using Zsh's gnarly parameter expansion. Added a few bits to lowercase everything and parse out spaces.