CRA2 doesn't work with reflect-metadata package

Created by: elderapo

Is this a bug report?

Yes

Did you try recovering your dependencies?

Which terms did you search for in User Guide?

None

Environment

Environment Info:

  System:
    OS: Linux 4.4 Ubuntu 14.04.5 LTS, Trusty Tahr
    CPU: x64 Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
  Binaries:
    Node: 9.11.2 - /usr/local/bin/node
    Yarn: 1.6.0 - ~/.yarn/bin/yarn
    npm: 5.6.0 - ~/.npm-global/bin/npm
  Browsers:
    Chrome: 71.0.3578.98
    Firefox: 64.0
  npmPackages:
    @types/react: ^16.8.2 => 16.8.2 
    @types/react-dom: ^16.8.0 => 16.8.0 
    react: ^16.8.1 => 16.8.1 
    react-dom: ^16.8.1 => 16.8.1 
    react-scripts: 2.1.3 => 2.1.3 
  npmGlobalPackages:
    create-react-app: 1.5.2

Steps to Reproduce

Just follow the steps from the Reproducible Demo part and open console in browser.

Expected Behavior

Browsers console should print someProperty type: Number.

Actual Behavior

It prints couldn't get the type :(.

Reproducible Demo

git clone git@github.com:elderapo/cra2-reflect-metadata-bug.git
cd cra2-reflect-metadata-bug
yarn
yarn start

The problem

I think the problem is that babel completely strips out TS types before compilation process which makes it impossible for reflect-metadata package to do its work.