Hello,
As a result of this "bug",
https://github.com/haskell/network/issues/86
unEscapeString in network 2.4.1.1 returns radically different results
than it did in 2.4.1.0. Why this got such a tiny version bump is
beyond me.
Unfortunately, happstack-server was written expecting the old behavior
and will not work correctly with the new behavior. A new version is in
the works, but for now, you should stick with network <= 2.4.1.0.
- jeremy