lib/locomotive/coal/upload_io.rb in locomotivecms_coal-1.5.0 vs lib/locomotive/coal/upload_io.rb in locomotivecms_coal-1.5.1

@@ -1,10 +1,18 @@
 module Locomotive::Coal
 
   class UploadIO < ::Faraday::UploadIO
 
     def initialize(filename_or_io, content_type = nil, filename = nil)
-      super(filename_or_io, content_type || 'application/octet-stream', filename)
+      if filename.blank? && filename_or_io.is_a?(String)
+        filename = File.basename(filename_or_io)
+      end
+
+      super(
+        filename_or_io,
+        content_type || MIME::Types.type_for(filename).first || 'application/octet-stream',
+        filename
+      )
     end
 
   end
 
 end