ranguard/plack-middleware-etag — pull request #1 by aanoaa (2014-07-24 06:44:15+00:00)
Title: support Mojo::Server::PSGI app

fixed in mojo app with ETag middleware

> Can't use string ("") as an ARRAY ref while "strict refs" in use

cause `$res->[2]` is not an ArrayRef.
it is `Mojo::Server::PSGI`.