Developer Strategy

[dereke]

When I use the developer strategy (only in development mode of course!) and I hit /auth/developer the response type is set to text/plain rather than text/html.

I notice the offending line is here https://github.com/intridea/omniauth/blob/master/lib/omniauth/form.rb#L186

I believe this would be better:
Rack::Response.new(@html, 200, {'content-type' => 'text/html'}).finish

Is there any reason why text/plain would be preferred or should I make a pull request?