Angular 4 Unit test error - Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'ng:///DynamicTestModule/LoginComponent.ngfactory.js'

Question

I am writing some unit tests for my component and i am getting this cryptic error message. I found a similar question at Angular 2 unit testing - getting error Failed to load &#

Answer 1

I encountered the same issue using angular-cli 6, so to get the right error message one should use the following:

ng test --source-map=false

Maybe it will help someone :) .