Cannot read property 'showDocFromType' of undefined

[alexbusu]

This issue pertains to the following package(s):

• GraphQL Playground - Electron App
• GraphQL Playground HTML
• GraphQL Playground
• GraphQL Playground Express Middleware
• GraphQL Playground Hapi Middleware
• GraphQL Playground Koa Middleware
• GraphQL Playground Lambda Middleware

What OS and OS version are you experiencing the issue(s) on?

Ubuntu 18.04

What version of graphql-playground(-electron/-middleware) are you experiencing the issue(s) on?

1.8.5

What is the expected behavior?

Open Docs with the Type selected

What is the actual behavior?

Error in console.

What steps may we take to reproduce the behavior?

Open in browser, write a query, mouseover on a node so that the popup appear, click on one element of the popup.

Please provide a gif or image of the issue for a quicker response/fix.