IE7+MathPlayer do *not* like the charset parameter to be set in the
Content-Type header. Forcing Rails to omit that parameter is surprisingly
difficult.
Upgraded to Rails 2.0.2, except that we maintain
vendor/rails/actionpack/lib/action_controller/routing.rb
from Rail 1.2.6 (at least for now), so that Routes don't change. We still
get to enjoy Rails's many new features.
Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
