When using auth_code grant, code redirects with query params, token with hash

When you request an auth_code grant, there is a difference in the redirect between code and token.

Code:
https://github.com/jaredhanson/oauth2orize/blob/master/lib/grant/code.js#L138

Token:
https://github.com/jaredhanson/oauth2orize/blob/master/lib/grant/token.js#L145

What is the reasoning for this difference?

Compare the redirect construction in lib/grant/code.js at line 138 with lib/grant/token.js at line 145. Start by tracing how each grant builds its redirect response and consult the surrounding OAuth flow; the issue is complete when the difference is explained and any intended change is identified.

Written by the indexing model from the issue text.