TypeError: pluginOn[k].callHandlers is not a function

[anish2690]

Version

6.0.0-beta.8

Browser and OS info

Firefox & OSX

Steps to reproduce

Tried to enable it on a older Vue 2 project but not able to detect app, but works fine for newly created boilerplate from Vue CLI

What is expected?

Should detect Vue 2 app

What is actually happening?

Not able to find Vue 2 app

[liuxilu]

Me too, but on 3.0.5 with direct <script> usage.

[jbmaisner]

Same here, on Vue 3.0.11, Chrome, OSX.
Unfortunately didn't find the origin :/
It happened right after Devtool update

[cgarnier]

I got the same issue.
I my project, i got a lib that add some methods to arrays.
The in is taking array keys AND the methods names. It should be replaced by await Array.map or something.

for (k in []) console.log(k)
 _map
 _reduce
 _filter
 _find
 _findIndex
 _sort
 _reverse

I know it s a bad idea to extend arrays prototype like that but there is weird stuff in any projects :D

[cgarnier]

To reproduce, just add

Array.prototype.foo = 'bar'

In a vue(2 || 3) project.

[liuxilu]

I defined enumerable prototype methods as well.
I solved this by creating nonenumerable methods with Object.defineProperty.
for...of seems won't fix this as it still enumerate enumerables.
Edit: for...of is not proto-chaining, so it will work.

[Akryum]

😓

[cgarnier]

Ty @Akryum