Crash When Dev Tools Open on non-Vue Application

[mlturner88]

Version

4.1.0

Browser and OS info

Chrome v64.0.3282.119 (64-bit) / Windows 10

Steps to reproduce

1. Navigate to non-Vue application with dev tools enabled (e.g. msn.com)
2. Open Chrome developer tools for site
3. Right-click an element on the page

What is expected?

Right-click context menu appears as normal.

What is actually happening?

Developer Tools are hitting an exception in the Vue dev tools extension code. If you continue the breakpoint the context menu does appear.

Console Error

Uncaught ReferenceError: o is not defined
    at HTMLDocument.document.addEventListener.t (<anonymous>:1:784)

Code Where Error Occurs

document.addEventListener("contextmenu", t=>{
        const n = t.target;
        if (n) {
            const t = Object(o.a)(n);
            if (t)
                return e.__VUE_DEVTOOLS_CONTEXT_MENU_HAS_TARGET__ = !0,
                void (e.__VUE_DEVTOOLS_CONTEXT_MENU_TARGET__ = t)
        }
        e.__VUE_DEVTOOLS_CONTEXT_MENU_HAS_TARGET__ = null,
        e.__VUE_DEVTOOLS_CONTEXT_MENU_TARGET__ = null
    }

[Akryum]

Duplicate of #514