That's not an error I've seen before. I don't think this is caused by trying to load a layer by URL since it occurs when importing the initial ATT&CK data (in getDomainData). From the error it looks like Observable is not being properly imported, as forkJoin comes from that import here.

Did you npm install before running ng build --prod? I can't imagine you'd get this far if you didn't npm install but maybe you had the other dependencies installed globally for some reason.

Another possibility is that the import of forkJoin has changed for a recent release of RxJS. We currently import it like so:

import { Observable } from "rxjs/Rx"

and then invoke as:

Observable.forkJoin( [...] )

But the docs of RxJS import it like this:

import { forkJoin } from 'rxjs';

It's possible that the way we're using it is no longer supported.

Hi @isaisabel, thanks for you quick reply!, in angular.json if I turn off AOT feat then everything works as expected from build --prod this is what I'm currently using for getting it works :

          "optimization": true,
          "outputHashing": "all",
          "sourceMap": false,
          "namedChunks": false,
          "aot": false,
          "extractLicenses": true,
          "vendorChunk": false,
          "buildOptimizer": false,

the point is if I revert this and set as it comes as default, and just make build not(--prod) no errors related about 'forkJoin' is displayed

That's actually consistent with how we build the live deployment of the Navigator now that I look at my notes. We build with the following:

ng build --prod --aot=false --build-optimizer=false

I can't remember if we ever tracked down the cause. I'll leave this issue open to document the fact that we should probably track it down and document it.

In the meantime I'll amend the docs to clarify that ng build --prod doesn't work without the extra flags.

mmm...OK ok, yep It would be nice having the docs updated with that clarification. Have a nice day.

Greetings!

We have run into this issue, too. Luckily it was already raised! I have also seen that it is in the documentation. (too late! :P)

ng build --prod without the extra flags raises errors with forkJoin when trying to fetch data from URL.

Adding the flags, works as expected. Thanks for your help.

Have a nice day!