PanelChrome: Put overflow: hidden; behind a feature toggle for safety (#112580)

put overflow: hidden behind a feature toggle for safety

pkg/services/featuremgmt/registry.go

@@ -2103,6 +2103,14 @@ var (
 			Owner:        grafanaPluginsPlatformSquad,
 			Expression:   "false",
 		},
+		{
+			Name:         "preventPanelChromeOverflow",
+			Description:  "Restrict PanelChrome contents with overflow: hidden;",
+			Stage:        FeatureStagePublicPreview,
+			FrontendOnly: true,
+			Owner:        grafanaFrontendPlatformSquad,
+			Expression:   "true",
+		},
 	}
 )
 

pkg/services/featuremgmt/toggles_gen.csv

@@ -270,3 +270,4 @@ pluginContainers,privatePreview,@grafana/plugins-platform-backend,false,true,fal
 tempoSearchBackendMigration,GA,@grafana/oss-big-tent,false,true,false
 cdnPluginsLoadFirst,experimental,@grafana/plugins-platform-backend,false,false,false
 cdnPluginsUrls,experimental,@grafana/plugins-platform-backend,false,false,false
+preventPanelChromeOverflow,preview,@grafana/grafana-frontend-platform,false,false,true

pkg/services/featuremgmt/toggles_gen.go

@@ -1089,4 +1089,8 @@ const (
 	// FlagCdnPluginsUrls
 	// Enable loading plugins via declarative URLs
 	FlagCdnPluginsUrls = "cdnPluginsUrls"
+
+	// FlagPreventPanelChromeOverflow
+	// Restrict PanelChrome contents with overflow: hidden;
+	FlagPreventPanelChromeOverflow = "preventPanelChromeOverflow"
 )

pkg/services/featuremgmt/toggles_gen.json

@@ -3038,6 +3038,20 @@
         "hideFromDocs": true
       }
     },
+    {
+      "metadata": {
+        "name": "preventPanelChromeOverflow",
+        "resourceVersion": "1760704390127",
+        "creationTimestamp": "2025-10-17T12:33:10Z"
+      },
+      "spec": {
+        "description": "Restrict PanelChrome contents with overflow: hidden;",
+        "stage": "preview",
+        "codeowner": "@grafana/grafana-frontend-platform",
+        "frontend": true,
+        "expression": "true"
+      }
+    },
     {
       "metadata": {
         "name": "promQLScope",