[SSR] Issue with webpack and token function since v3

Hello,
I upgraded from v2 to v3 and it went well when building my code with webpack until I did it with server-side rendering.

My SSR build compiles successfully and throws the error below when running.
v2 had no issues but I would really like to use v3 with its network errors dispatching failure errors instead request errors.

Do you guys have any suggestion for where to look at?

P.S. I have async/await code running successfully all over my code
redux-api-middleware v3.0.1
node v6.11.2

> C:\Users\Adrien\Documents\Dev\front-end-ssr\node_modules\redux-api-middleware\lib\index.cjs.js:315
> async function getJSON(res) {
> ^^^^^^^^
>
> SyntaxError: Unexpected token function
> at createScript (vm.js:56:10)
> at Object.runInThisContext (vm.js:97:10)
> at Module._compile (module.js:542:28)
> at Object.Module._extensions..js (module.js:579:10)
> at Module.load (module.js:487:32)
> at tryModuleLoad (module.js:446:12)
> at Function.Module._load (module.js:438:3)
> at Module.require (module.js:497:17)
> at require (internal/module.js:20:19)
> at Object. (C:\Users\Adrien\Documents\Dev\front-end-ssr\dist\server\webpack:\external "redux-api-middleware":1:1)
> at __webpack_require__ (C:\Users\Adrien\Documents\Dev\front-end-ssr\dist\server\webpack:\webpack\bootstrap df994b170392f2cd3d7f:19:1)
> at Object. (C:\Users\Adrien\Documents\Dev\front-end-ssr\dist\server\serverRenderer.js:38632:79)
> at __webpack_require__ (C:\Users\Adrien\Documents\Dev\front-end-ssr\dist\server\webpack:\webpack\bootstrap df994b170392f2cd3d7f:19:1)
> at Object. (C:\Users\Adrien\Documents\Dev\front-end-ssr\dist\server\serverRenderer.js:38362:87)
> at __webpack_require__ (C:\Users\Adrien\Documents\Dev\front-end-ssr\dist\server\webpack:\webpack\bootstrap df994b170392f2cd3d7f:19:1)
> at C:\Users\Adrien\Documents\Dev\front-end-ssr\dist\server\webpack:\webpack\bootstrap df994b170392f2cd3d7f:62:1