docker-compose_ksql-server_1 and docker-compose_datagen-ratings_1 exiting while running docker

[jsing120]

So when i try to run this example, examples/postgres-debezium-ksql-elasticsearch the KSQL and datagen containers are exiting with the following logs

[kafka-admin-client-thread | adminclient-1] WARN org.apache.kafka.clients.NetworkClient - [AdminClient clientId=adminclient-1] Connection to node -1 (kafka/172.20.0.4:29092) could not be established. Broker may not be available.
[kafka-admin-client-thread | adminclient-1] WARN org.apache.kafka.clients.NetworkClient - [AdminClient clientId=adminclient-1] Connection to node -1 (kafka/172.20.0.4:29092) could not be established. Broker may not be available.
[kafka-admin-client-thread | adminclient-1] WARN org.apache.kafka.clients.NetworkClient - [AdminClient clientId=adminclient-1] Connection to node -1 (kafka/172.20.0.4:29092) could not be established. Broker may not be available.
Waiting for Confluent Schema Registry to be ready...
Unexpected response with code: 407 and content <some html content of my company's  proxy server blocking access to http://schema-registry:8081/config>

Now im behind a proxy which i have correctly setup in docker but looks like the container is trying to hit the following URL http://schema-registry:8081/config and getting refused. Following hosts are bypassed from proxy server -> localhost,127...,172...,schema-registry Is there any specific connection settings that i need to be aware of ? or proxy bypass settings?