GraphiQL v2.4.1 won't run IntrospectionQuery properly

[sparktx-adam-gleason]

• What is the current behavior?

GraphiQL update to v2.4.1 won't load properly. Loading up the page gives this error

{
  "errors": [
    {
      "message": "Must provide query string."
    }
  ]
}

Investigating the Network tab shows the IntrospectionQuery is giving a 400 error. I've tested the query against my app using Postman and it works correctly.

Queries against the /graphq/ endpoint using Postman also work.

Just the update to the new interface for GraphiQL seems to break.

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via
  a github repo, https://repl.it or similar (you can use this template as a starting point: https://repl.it/@jkimbo/Graphene-Django-Example).

Example repo here

1. Clone repo
2. pip install requirements
3. navigate to localhost:8000/graphql/ to see error.

• What is the expected behavior?

GraphiQL view works properly.

• Please tell us about your environment:

  • Version: graphene-django==3.0.1
  • Platform: MacOS

NOTE: GraphiQL works fine on graphene-django==3.0.0

[kiendang]

I just ran into this as well. Investigating.

[dicknetherlands]

I also had this problem.