lib/httpx/plugins/multipart/part.rb in httpx-0.14.0 vs lib/httpx/plugins/multipart/part.rb in httpx-0.14.1

@@ -24,10 +24,10 @@
         if value.is_a?(File)
           filename ||= File.basename(value.path)
           content_type ||= MimeTypeDetector.call(value, filename) || "application/octet-stream"
           [value, content_type, filename]
         else
-          [StringIO.new(value.to_s), "text/plain"]
+          [StringIO.new(value.to_s), content_type || "text/plain"]
         end
       end
     end
   end
 end