localhost:8080 has something running on it which is giving "bad gateway", how do I get rid of it?

sfromgi wrote:

M1 MBPro. If I type in localhost:8080 into chrome, i get:

Bad Gateway

The proxy server received an invalid response from an upstream server.

So something is running on port 8080. If I got to advanced on network prefs, then look at the prox tab, nothing is checked or configured. I have no VPNs running, and I don have any antivirus or similar.

Any idea what is causing this, and if I can get rid of this proxy as I want to install some dev tools which run on 8080.

And what are you expecting at < localhost:8080 > ?

Java web application servers typically listen on port 8080

 sudo lsof -i :8080 | grep LISTEN 

sfromgi wrote:

ah, found the culprit thanks. It was docker, even though i had no containers. Killed docker and now 8080 is free.

Good computing sfromg—sounds like it solved your issue.

The actual server-side HTTP Status code says this:

If you do not control that web server, then there is nothing you can do about it.