Graphql-playground: Cannot use graphql-playground App

[o3o3o]

This issue pertains to the following package(s):

• [x] GraphQL Playground - Electron App

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

mac os 10.12.6 (16G1212)

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

GraphQL Playground 1.5.6

#

What steps may we take to reproduce the behavior?

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

The App is blocking when I input the url. And I am sure the url is ok with Graphiql client.

var selectedItem = this.props.items.get(this.state.selectedItemIndex).toJS();

: 
app.ad6d65d….js:172971 Uncaught TypeError: Cannot read property 'toJS' of undefined
    at HistoryPopup.render (app.ad6d65d….js:172971)
    at h (app.ad6d65d….js:124842)
    at beginWork (app.ad6d65d….js:124845)
    at d (app.ad6d65d….js:124873)
    at f (app.ad6d65d….js:124873)
    at g (app.ad6d65d….js:124874)
    at m (app.ad6d65d….js:124881)
    at w (app.ad6d65d….js:124880)
    at batchedUpdates (app.ad6d65d….js:124883)
    at tc (app.ad6d65d….js:124766)
    at vd (app.ad6d65d….js:124783)

[Kacppian]

This doesn't happen anymore in GraphQL Playground 1.7.0. Can you update your client and check if it's still happening?

[timsuchanek]

Fixed in the latest version. Please let us know if you still have that issue, then we reopen it!