As requested by ajgeiss0702#0702 on Discord.

POST data is the same for both confidential and non-confidential issues.
X-Gitlab-Event is different, however - Confidential Issue Hook instead of Issue Hook.
There's a object_attributes.confidential field (values: true/false), however, when testing "Confidential issues events", GitLab might send an event for a non-confidential issue.
As requested by ajgeiss0702#0702 on Discord.

POST data is the same for both confidential and non-confidential issues.
X-Gitlab-Eventis different, however -Confidential Issue Hookinstead ofIssue Hook.There's a
object_attributes.confidentialfield (values:true/false), however, when testing "Confidential issues events", GitLab might send an event for a non-confidential issue.