Connecting to localhost redirects through proxy

I am trying to call an endpoint on a locally hosted Tomcat server using Postman. However, when I make the call to:

localhost:9000/api/postMethod

it redirects my request through the corporate proxy.

I don't see any options in Postman and I have tried removing the proxy settings in the internet options, but the problem persists.

When I look at the Postman Console, I see the below. Why is it sending proxy-authorization and proxy-connection to localhost?

Request Headers:
cache-control:"no-cache"
Postman-Token:"{token}"
User-Agent:"PostmanRuntime/3.0.11-hotfix.2"
Accept:"*/*"
accept-encoding:"gzip, deflate"
proxy-authorization:"Basic {auth}"
referer:"http://localhost:9000/api/postMethod"

Response Headers:
cache-control:"no-cache"
connection:"Keep-Alive"
content-length:"8063"
content-type:"text/html; charset=utf-8"
pragma:"no-cache"
proxy-connection:"Keep-Alive"

I had my http_proxy system environment variable set. Looks like it's working once I removed it and restarted Postman.

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You must set the following environment variables (I do it in .bashrc file):

$ env | grep PROXY
HTTP_PROXY=myProxy:9999
HTTPS_PROXY=myProxy:9999
NO_PROXY=localhost,127.0.0.1

Then, you have to tell Postman to use the System Proxy in the Proxy settings section. It's just annoying because you can set your proxy in the settings, but you can't set no proxy hosts.

Setting up a Reverse Proxy Server – Welcome to netnea, This in turn is connected to a database server located in yet another layer. This is Connected to localhost (127.0.0.1) port 8000 (#0) > GET / HTTP/1.1 Instead of the suggested redirect flag the keyword proxy is used here. I first saw this solution on another site, but posting the link seemed to get my post silently removed, so I've left it out this time. I can't take credit for coming up with this answer, though I have rewritten it, hopefully to make it simpler and clearer.


If you're stuck behind a corporate proxy or similar and you're using automatic proxy configuration which won't let you allow to connect to localhost addresses, this is what helped me:

Try using your IP address instead of localhost as a host name in your client application, e.g. http://127.0.0.1/api/v1/...

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