Postman cannot connect to my workspace/account when SSL proxy is in place

Hello, I have a client that is using an SSL proxy to intercept all traffic when you are logged into their VPN. As usual this proxy issues it’s own self-signed cert to make the browser think it has a secure connection. My browser (Chrome) sees this as a problem unless you install the client’s root cert as a valid certificate. That I don’t care about - My main problem is that this causes Postman itself to become inoperable as it is unable to contact it’s own servers and get to my workspace. I get the error “Unable to load data - We are trying to establish a connection with our servers. Your data may not be up to date until you’re connected”.

How do I get Postman to recognize their cert as valid so that the cert chain will not be broken? I’m on a Windows machine and have already tried installing the cert in the cert store but that doesn’t seem to have helped. Is there somewhere else I need to install it so that Postman knows it’s valid?

Thank you
-Justin

Is there really nobody that knows how to make Postman play nice with an SSL proxy?

Hi @jwilcox767

Not had to play with certificates myself but is it possible that you need to add a cert into the settings menu here;

Yeah, I did try that but I think that only affects situations where you are making API calls from a workspace. When trying to simply open the application it must not use those to see if the SSL Proxy cert is valid.

Hi, this is still the issue. Trying to use cloudflare zero trust with postman and I have the same issue. Error code: 202
All of the urls from the documentation are whitelisted.

[13389:0410/133530.558368:ERROR:cert_verify_proc_builtin.cc(1051)] CertVerifyProcBuiltin for app.launchdarkly.com failed:
----- Certificate i=1 (CN=Gateway CA - Cloudflare Managed G1 6a6899c04f7b09967a8e13fb35cd7aab,OU=www.cloudflare.com,O=Cloudflare, Inc.,L=San Francisco,ST=California,C=US) -----
ERROR: No matching issuer found