In the function request_query_option of dlls/winhttp/session.c, there is no case for WINHTTP_OPTION_SERVER_CERT_CHAIN_CONTEXT. This is already implemented in upstream Wine (https://gitlab.winehq.org/wine/wine/-/merge_requests/10357/), but I'm not sure of the process for getting a change like this pulled in out of order.
In the function
request_query_optionofdlls/winhttp/session.c, there is no case forWINHTTP_OPTION_SERVER_CERT_CHAIN_CONTEXT. This is already implemented in upstream Wine (https://gitlab.winehq.org/wine/wine/-/merge_requests/10357/), but I'm not sure of the process for getting a change like this pulled in out of order.