"message": "Unknown operation named \"undefined\"."

I’m testing / debugging resolvers using GraphiQL. At times, seemingly prompted by restarting the backend app, I’ll start getting responses like this:

{
  "errors": [
    {
      "message": "Unknown operation named \"undefined\"."
    }
  ]
}

Restarting the app or refreshing the GraphiQL page do not fix the error. However, cutting the query and pasting it back into the query window seems to resolve the issue.

Thanks.

[apoberez]

Hello, same issue using this tutorial http://docs.graphene-python.org/projects/sqlalchemy/en/latest/tutorial/ sorry if off-topic

[leebyron]

I’m not exactly sure what the root issue is, but I think this is due to saving state between runs. localStorage coerces everything to a String before saving it, so setting undefined results in getting "undefined".