Expected Behavior

When setting the Proxy-Type in an import source of type "REST API" to "HTTP proxy" only the necessary fields "Proxy Address*", "Proxy Username" and "Proxy Password" should be visible.

Current Behavior

After choosing "HTTP proxy" the following message appears (in addition to the proxy-fields):
Deprecated
: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in
/usr/share/icingaweb2/modules/director/library/Director/Import/ImportSourceRestApi.php
on line
276

Steps to Reproduce (for bugs)

Go to
"Automation" -> Import source -> +Add -> Add a new source name, choose Source Type "REST API" -> choose "HTTP proxy"

Your Environment

• Director version (System - About): 1.11.1
• Icinga Web 2 version and modules (System - About): 2.12.1
• Icinga 2 version (icinga2 --version): 2.14.2
• Operating System and version: SLES 15 SP5
• Webserver, PHP versions: Apache, 8.1.28