incompatible encoding regexp match (UTF-8 regexp with ASCII-8BIT string) about rest-core HOT 2 CLOSED

I think this is introduced by: ac00e89
We could revert it (but need to make sure the original problem is still fixed), or fix this is by
enforcing the RESPONSE_BODY always be UTF-8 encoded, as something like this:
(not tested)

class EnforceEncoding
  def initialize; app; @app = app; end
  def call env, &k
    @app.call(env) do |res|
      res[RC::RESPONSE_BODY].force_encoding('UTF-8')
      k.call(res)
    end
  end
end

and use it before JsonResponse:

MatchingApiClient = RC::Builder.client do
  use RC::DefaultSite , ENVIRONMENTS[:producton]
  use RC::DefaultQuery, { threshold: 0 } 
  use RC::JsonRequest, true
  use RC::JsonResponse, true
  use EnforceEncoding
  use RC::CommonLogger, method(:puts)
  use RC::Cache       , nil, 3600
end

However, this means we're ignoring any encoding other than UTF-8,
I am not sure if this is ok for you? Dealing with any possible encoding
is hard :( For example, if the encoding is not ASCII-7bit compatible,
then parsing JSON might fail anyway, and so on so forth.

I am thinking that, maybe we shouldn't make sure everything is
UTF-8 encoded, but make sure everything is ASCII-8bit encoded.
This is also ignoring encoding, but at least we're not giving
possibly improperly encoded UTF-8 strings.

Thoughts?

from rest-core.

This is reverted in 6c16cb8. Please let me know if this is happening again. Thanks!

from rest-core.