HTTP Request via Proxy (connect ECONNREFUSED 127.0.0.1:80)

If you are trying to use HTTP node with proxies to scrape some external website, this might be very relevant:

ScrapeNinja n8n node supports custom proxies and also features rotating proxies from many countries, out of the box.

if “custom proxy” is selected, http(s) proxy can be filled in http://user:pw@host:port format.