Custom Connector encounter 500 error on self-signed Restful API

Type of Connector

Custom Connector

Name of Connector

SAP B1 Service Layer

Describe the bug

Power Platform custom connector encounters below error on self-signed Restful API.

{
"error": {
"code": 500,
"message": "The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.",
"source": "asia-001.azure-apim.net",
"path": "forward-request",
"policyId": "",
"clientRequestId": "dc49fc2c-df21-4969-a1ab-74f20522b7bd"
}
}

Does customer connector support self-signed certificate?

Is this a security bug?

Yes, this is a security bug

What is the severity of this bug?

Severity 1 - Connector is broken or there's a very serious issue

To Reproduce

create custom connector to invoke API from my server which has self-signed certificates.

Expected behavior

custom connector should work as normal

Environment summary

Install Method (e.g. pip, interactive script, apt-get, Docker, MSI, edge build)
CLI version (paconn --version)
OS version
Shell Type (e.g. bash, cmd.exe, Bash on Windows)

Additional context

Does customer connector support self-signed certificate?

No repository file, test, or implementation entry point is identified. Reproduce the custom connector request against the self-signed REST API, then determine whether self-signed certificates are supported and what change or documented limitation resolves the reported TLS trust error.