Angular: 7.1.0
Firebase: 5.7.2
AngularFire: 5.1.1
Failing test unit, Plunkr, or JSFiddle demonstrating the problem
https://github.com/mhartington/ng-fire
Steps to set up and reproduce
Clone the project, install deps, do a prod build, and serve the app (using httpster here)
git clone [email protected]:mhartington/ng-fire.git
cd ng-fire
npm install
ng build --prod
cd dist/ng-fire
httpster -s
Sample data and security rules
Sample project has all the data in place
* Screenshots *

If you build for es5, the example app works as expected. You can access the AngularFireStorage module from lazy loaded components(routes).
Targeting ES2015 or higher, the module will not load, unless it is provided in the lazy loaded module.
I'm having the same issue. Did you find a work around?
It's very frustrating this only happens with build prod.
Edit: Added photo of error as well if it helps

I am having the same issue. I had to go back to targeting es5 until this is resolved.
Is this still an issue in 5.2? I fixed a couple issues related.
I have done a rebuild with 5.2.1 and everything does appear to be working again. I think I was on 5.2.0-rc3 when I had issues. Sorry to bother without updating the latest version. You should be able to close this issue now.
Most helpful comment
I'm having the same issue. Did you find a work around?
It's very frustrating this only happens with build prod.
Edit: Added photo of error as well if it helps
