3495191 - HttpCertIsReverseProxyTrustworthy: client did not sent any cert ->intermediate not trustworthy

Symptom

A principal propagation Single sign-on (SSO) is failing with the following errors seen in the dev_webdisp trace:

HttpCertIsReverseProxyTrustworthy: client did not sent any cert ->intermediate not trustworthy
...
HttpCertIsReverseProxyTrustworthy: client did not sent any cert ->intermediate not trustworthy
HttpIsReverseProxyTrustworthy: intermediary is NOT trusted
HTTP request [xx/xxxx/x] Reject untrusted forwarded certificate (received via HTTPS without certificate): subject="xxx", issuer="xxxxx"

This message can appear also in the dev_icm trace file in the ABAP Application server in the backend.

Environment

SAP Web Dispatcher

ABAP Application Server

Product

SAP WEB DISPATCHER 9.16 ; SAP Web Dispatcher 7.77 ; SAP Web Dispatcher 7.81 ; SAP Web Dispatcher 7.85 ; SAP Web Dispatcher 7.89 ; SAP Web Dispatcher 7.93

Keywords

X.509 client certificate, STRUST, pse, no cert, not trusted , KBA , BC-CST-WDP , Web Dispatcher , Problem

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