Jack Steam jacksteamdev

Please include a repro

Create a sample repo on GitHub
Demonstrate the problem, and nothing but the problem. If the app where you're experiencing the issue happens to use Gulp, I don't care, unless the problem involves Gulp. Remove that stuff. Whittle it down to the bare minimum of code that reliably demonstrates the issue. Get rid of any dependencies that aren't directly related to the problem.
Install all your dependencies to package.json. If I can't clone the repo and do npm install && npm run build (or similar – see point 4) to see the problem, because I need some globally installed CLI tool or whatever, then it's not really a minimal reproduction.
Include instructions in the repo, along with a description of the expected and actual behaviour. Obviously the issue should include information about the bug as well, but it's really helpful if README.md

	import { Observable } from 'rxjs'

	export function log() {
	return function logFn<T>(source: Observable<T>) {
	const output = new Observable<T>((observer) => {
	const subscription = source.subscribe({
	next: (val) => {
	console.log(val)
	observer.next(val)
	},