Node.js has a bug report and repro of ocsp status not being sent from a node server to the openssl CLI when TLS1.3 is being used, but only when server is setting an ecdh curve, with SSL_CTX_set1_curves_list() repro is https://github.com/sam-github/node-ocsp-bug-repro TLS trace of success is https://github.com/sam-github/node-ocsp-bug-repro/blob/master/ok.txt, and of failure is https://github.com/sam-github/node-ocsp-bug-repro/blob/master/notok.txt I hacked up node a bit, and it does look like in both cases the same API interactions between node and openssl are ocurring, at least with respect to the cb from SSL_set_cert_cb() is happening, after which time we save some data, and then we call SSL_set_tlsext_status_ocsp_resp() with that data. AFAICT, with SSL_CTX_set1_curves_list() called, the ocsp data never shows up in the server response. I'm not sure what to look at next, does anybody have ideas? Thanks, Sam