SMP REST API and HTTP Header Host parameter

[horacis]

Hi

How to set Apache Tomcat 10 (10.1.34) to accept HTTP request (REST API) without Headers? If there is no at least Host HTTP parameter, it returns response HTTP 400:
We added:
CATALINA_OPTS="$CATALINA_OPTS -Djava.awt.headless=true
but nothing chanded.
Environment: SMP version 7.2.0 (on Apache Tomcat 10.1.34 using java 11 (11.0.25+9-post-Ubuntu-1ubuntu124.04)).

Without Host Header parameter: 400

With Host Heaader parameter: 200

Our partner insists, that no HTTP header is required.

[phax]

According to the HTTP Specification, the Host header is a must:
https://www.rfc-editor.org/rfc/rfc9110.html#name-host-and-authority

A user agent MUST generate a Host header field in a request unless it sends that information as an ":authority" pseudo-header field. A user agent that sends Host SHOULD send it as the first field in the header section of a request.

So no, I can't help you here :)