JS-IPFS to Kubo connection

I have the following scenario:

Node A (Kubo) running locally in Docker (later in AWS in production). Contains File with CID ABC.

Node B (JS-IPFS) running in a browser (Chrome 103.0.5060.134, React 18.2.0, ipfs-core (js-ipfs) 0.15.4)

In the bootstrap list of B: Bootstrap: [“/ip4/127.0.0.1/tcp/4003/ws/p2p/A-NODE-ID”]

Trying in B to cat the ABC cid from A and everything halts and it does not resolve.

Shouldn’t it fetch the file with ABC cid directly from node A ???
Any help or tips on the needed configuration much appreciated :slight_smile: