error_event.rb in timber-2.6.0.pre.beta2

- old
+ new

@@ -16,14 +16,11 @@
     module Rack
       # A Rack middleware that is reponsible for capturing exception and error events
       # {Timber::Events::Error}.
       class ErrorEvent < Middleware
         # We determine this when the app loads to avoid the overhead on a per request basis.
-        EXCEPTION_WRAPPER_TAKES_CLEANER = if Gem.loaded_specs["rails"]
-          Gem.loaded_specs["rails"].version >= Gem::Version.new('5.0.0')
-        else
-          false
-        end
+        EXCEPTION_WRAPPER_TAKES_CLEANER = defined?(::ActionDispatch::ExceptionWrapper) &&
+          !::ActionDispatch::ExceptionWrapper.instance_methods.include?(:env)
 
         def call(env)
           begin
             status, headers, body = @app.call(env)
           rescue Exception => exception
\ No newline at end of file