Guillaume Chau

What about leaving the app running and just hide it after the first invocation?

Not really, as this is Vue internals and they changed in Vue 2.7

You should pin Vue to 2.6 for now

The data returned is immutable and you have to clone it to modify it.

Yes, that is what I would do.

You can freeze the data yourself in the `update` function.

This doesn't work for me. ``` Error: Cannot find module 'meteor/tracker' ```

Strange. I just tried it in my Meteor app and it throws the error. Maybe there is an issue with Meteor not processing imports in npm packages the same way...

In Jest I think this will work: ```js beforeEach(() => { window.Tracker = Tracker }) ```

I'll migrate this repo to the webpack-simple vue-cli template when I have time. 😉