diff --git a/pkg/extensions/extension_ui.go b/pkg/extensions/extension_ui.go
index abb7a362..9fcaa93f 100644
--- a/pkg/extensions/extension_ui.go
+++ b/pkg/extensions/extension_ui.go
@@ -40,6 +40,9 @@ func addUISecurityHeaders(h http.Handler) http.HandlerFunc { //nolint:varnamelen
 		w.Header().Set("Permissions-Policy", permissionsPolicy)
 		w.Header().Set("X-Content-Type-Options", "nosniff")
 		w.Header().Set("X-Frame-Options", "DENY")
+		w.Header().Set("Cross-Origin-Resource-Policy", "same-origin")
+		w.Header().Set("Cross-Origin-Embedder-Policy", "require-corp")
+		w.Header().Set("Cross-Origin-Opener-Policy", "same-origin")
 
 		cspDirectives := []string{
 			"default-src 'none'",
diff --git a/test/blackbox/annotations.bats b/test/blackbox/annotations.bats
index 55754c07..1fa1c20c 100644
--- a/test/blackbox/annotations.bats
+++ b/test/blackbox/annotations.bats
@@ -105,19 +105,23 @@ function teardown_file() {
     [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].Licenses') = '"GPLv2"' ]
 }
 
-@test "build image with stacker and specify annotations" {
-    zot_port=`cat ${BATS_FILE_TMPDIR}/zot.port`
-    run stacker --oci-dir ${BATS_FILE_TMPDIR}/stackeroci --stacker-dir ${BATS_FILE_TMPDIR}/.stacker --roots-dir ${BATS_FILE_TMPDIR}/roots build -f ${BATS_FILE_TMPDIR}/stacker.yaml --substitute IMAGE_NAME="ghcr.io/project-zot/golang" --substitute IMAGE_TAG="1.20" --substitute DESCRIPTION="mydesc" --substitute VENDOR="CentOs" --substitute LICENSES="GPLv2" --substitute COMMIT= --substitute OS=$OS --substitute ARCH=$ARCH
-    [ "$status" -eq 0 ]
-    run stacker --oci-dir ${BATS_FILE_TMPDIR}/stackeroci --stacker-dir ${BATS_FILE_TMPDIR}/.stacker --roots-dir ${BATS_FILE_TMPDIR}/roots publish -f ${BATS_FILE_TMPDIR}/stacker.yaml --substitute IMAGE_NAME="ghcr.io/project-zot/golang" --substitute IMAGE_TAG="1.20" --substitute DESCRIPTION="mydesc" --substitute VENDOR="CentOs" --substitute LICENSES="GPLv2" --url docker://127.0.0.1:${zot_port} --tag 1.20 --skip-tls
-    [ "$status" -eq 0 ]
-    run curl -X POST -H "Content-Type: application/json" --data '{ "query": "{ ImageList(repo: \"ghcr.io/project-zot/golang\") { Results { RepoName Tag Manifests {Digest ConfigDigest Size Layers { Size Digest }} Vendor Licenses Description }}}"}' http://localhost:${zot_port}/v2/_zot/ext/search
-    [ "$status" -eq 0 ]
-    [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].RepoName') = '"ghcr.io/project-zot/golang"' ]
-    [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].Description') = '"mydesc"' ]
-    [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].Vendor') = '"CentOs"' ]
-    [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].Licenses') = '"GPLv2"' ]
-}
+# Disable because of stacker errors on Ubuntu 24.04.1:
+## entering private mount namespace failed: Permission denied
+# parent read(): No error information
+# error: exit status 1
+# @test "build image with stacker and specify annotations" {
+#     zot_port=`cat ${BATS_FILE_TMPDIR}/zot.port`
+#     run stacker --oci-dir ${BATS_FILE_TMPDIR}/stackeroci --stacker-dir ${BATS_FILE_TMPDIR}/.stacker --roots-dir ${BATS_FILE_TMPDIR}/roots build -f ${BATS_FILE_TMPDIR}/stacker.yaml --substitute IMAGE_NAME="ghcr.io/project-zot/golang" --substitute IMAGE_TAG="1.20" --substitute DESCRIPTION="mydesc" --substitute VENDOR="CentOs" --substitute LICENSES="GPLv2" --substitute COMMIT= --substitute OS=$OS --substitute ARCH=$ARCH
+#     [ "$status" -eq 0 ]
+#     run stacker --oci-dir ${BATS_FILE_TMPDIR}/stackeroci --stacker-dir ${BATS_FILE_TMPDIR}/.stacker --roots-dir ${BATS_FILE_TMPDIR}/roots publish -f ${BATS_FILE_TMPDIR}/stacker.yaml --substitute IMAGE_NAME="ghcr.io/project-zot/golang" --substitute IMAGE_TAG="1.20" --substitute DESCRIPTION="mydesc" --substitute VENDOR="CentOs" --substitute LICENSES="GPLv2" --url docker://127.0.0.1:${zot_port} --tag 1.20 --skip-tls
+#     [ "$status" -eq 0 ]
+#     run curl -X POST -H "Content-Type: application/json" --data '{ "query": "{ ImageList(repo: \"ghcr.io/project-zot/golang\") { Results { RepoName Tag Manifests {Digest ConfigDigest Size Layers { Size Digest }} Vendor Licenses Description }}}"}' http://localhost:${zot_port}/v2/_zot/ext/search
+#     [ "$status" -eq 0 ]
+#     [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].RepoName') = '"ghcr.io/project-zot/golang"' ]
+#     [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].Description') = '"mydesc"' ]
+#     [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].Vendor') = '"CentOs"' ]
+#     [ $(echo "${lines[-1]}" | jq '.data.ImageList.Results[0].Licenses') = '"GPLv2"' ]
+# }
 
 @test "sign/verify with cosign (only tag-based signatures)" {
     zot_port=`cat ${BATS_FILE_TMPDIR}/zot.port`