This is just an FYI that Angular CLI [moved](https://github.com/angular/angular-cli/pull/11996) from UglifyJS to [terser](https://www.npmjs.com/package/terser) in the last month or so, resolving this issue for people using that 👍 I would have commented on https://github.com/visionmedia/debug/issues/547 to provide this update but it's been locked Thank you @Qix- for your time and thoughtful responses in that thread