modules not loading when using cache-loader

**I'm submitting a bug report**

* **Library Version:**
3.0.0

**Please tell us about your environment:**
* **Operating System:**
Windows 10

* **Node Version:**
6.11.1

* **NPM Version:**
3.10.10

* **JSPM OR Webpack AND Version**
webpack 4.4.1

* **Browser:**
all
* **Language:**
TypeScript 2.6

**Current behavior:**

I want to use [cache-loader](https://github.com/webpack-contrib/cache-loader) in order to speed up webpack builds. As soon as I try to use cache-loader with [ts-loader](https://github.com/TypeStrong/ts-loader), during runtime modules defined with `PLATFORM.ModuleName('XXX')` cannot be resolved resulting in error `Unable to find module with XXX`.

**Expected behavior:**
Modules defined with `PLATFORM.ModuleName('XXX')` should be resolved during runtime when using [cache-loader](https://github.com/webpack-contrib/cache-loader) and should not result in error.