Error Uncaught TypeError: Cannot read property 'type' of null is happening when click some of compoents

[ryutamaki]

Version

4.0.0

Browser and OS info

Version 63.0.3239.132（Official Build） （64bit）

Steps to reproduce

1. Open inspector
2. Click some of the component

What is expected?

vue-devtools shows me information of selected components

What is actually happening?

backend.js:1 Uncaught TypeError: Cannot read property 'type' of null
    at VM7093 backend.js:1
    at x (VM7093 backend.js:1)
    at t.a (VM7093 backend.js:1)
    at Object.y (VM7093 backend.js:1)
    at e (VM7093 backend.js:1)
    at e (VM7093 backend.js:1)
    at e (VM7093 backend.js:1)
    at e (VM7093 backend.js:1)
    at Object.t.stringifyStrict (VM7093 backend.js:1)
    at Object.t.stringify (VM7093 backend.js:1)

[filipsobol]

I have the same issue, both on Chrome ( 63.0.3239.132) and FF (57.0.4).

[Akryum]

Duplicate of #499, see #499 (comment)