[release-4.18] OCPBUGS-61697: Remove ancient X-XSS-Protection header

[openshift-cherrypick-robot]

This is an automated cherry-pick of #15381

/assign sdodson

/cherrypick release-4.17 release-4.16

[openshift-ci-robot]

@openshift-cherrypick-robot: Jira Issue OCPBUGS-60279 has been cloned as Jira Issue OCPBUGS-61697. Will retitle bug to link to clone.
/retitle [release-4.18] OCPBUGS-61697: Remove ancient X-XSS-Protection header

In response to this:

This is an automated cherry-pick of #15381

/assign sdodson

/cherrypick release-4.17 release-4.16

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[openshift-ci-robot]

@openshift-cherrypick-robot: This pull request references Jira Issue OCPBUGS-61697, which is valid. The bug has been moved to the POST state.

7 validation(s) were run on this bug

• bug is open, matching expected state (open)
• bug target version (4.18.z) matches configured target version for branch (4.18.z)
• bug is in the state New, which is one of the valid states (NEW, ASSIGNED, POST)
• release note text is set and does not match the template
• dependent bug Jira Issue OCPBUGS-60279 is in the state Closed (Done), which is one of the valid states (VERIFIED, RELEASE PENDING, CLOSED (ERRATA), CLOSED (CURRENT RELEASE), CLOSED (DONE), CLOSED (DONE-ERRATA))
• dependent Jira Issue OCPBUGS-60279 targets the "4.19.z" version, which is one of the valid target versions: 4.19.0, 4.19.z
• bug has dependents

Requesting review from QA contact:
/cc @yapei

The bug has been updated to refer to the pull request using the external bug tracker.

In response to this:

This is an automated cherry-pick of #15381

/assign sdodson

/cherrypick release-4.17 release-4.16

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[sdodson]

/assign @jhadvig
/lgtm
/label backport-risk-assessed
I've confirmed that this picks cleanly all the way back to 4.16 but nothing more than that. I'm assuming since you reviewed and picked it to release-4.19 already nothing else was required.

[openshift-ci]

@openshift-cherrypick-robot: all tests passed!

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[jhadvig]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jhadvig, openshift-cherrypick-robot, sdodson

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• pkg/OWNERS [jhadvig]

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[sdodson]

/verified by reviewing headers in a cluster-bot cluster

[openshift-ci-robot]

@sdodson: This PR has been marked as verified by reviewing headers in a cluster-bot cluster.

In response to this:

/verified by reviewing headers in a cluster-bot cluster

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[openshift-ci-robot]

@openshift-cherrypick-robot: Jira Issue Verification Checks: Jira Issue OCPBUGS-61697
✔️ This pull request was pre-merge verified.
✔️ All associated pull requests have merged.
✔️ All associated, merged pull requests were pre-merge verified.

Jira Issue OCPBUGS-61697 has been moved to the MODIFIED state and will move to the VERIFIED state when the change is available in an accepted nightly payload. 🕓

In response to this:

This is an automated cherry-pick of #15381

/assign sdodson

/cherrypick release-4.17 release-4.16

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[openshift-cherrypick-robot]

@openshift-cherrypick-robot: new pull request created: #15494

In response to this:

This is an automated cherry-pick of #15381

/assign sdodson

/cherrypick release-4.17 release-4.16

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[openshift-bot]

[ART PR BUILD NOTIFIER]

Distgit: openshift-enterprise-console
This PR has been included in build openshift-enterprise-console-container-v4.18.0-202509151502.p0.gcb37983.assembly.stream.el9.
All builds following this will include this PR.

[openshift-merge-robot]

Fix included in accepted release 4.18.0-0.nightly-2025-09-17-044824