diff --git a/src/Umbraco.Web.UI.Client/src/packages/templating/stylesheets/tree/stylesheet-tree.repository.ts b/src/Umbraco.Web.UI.Client/src/packages/templating/stylesheets/tree/stylesheet-tree.repository.ts
index e84a6fb730..4b84227639 100644
--- a/src/Umbraco.Web.UI.Client/src/packages/templating/stylesheets/tree/stylesheet-tree.repository.ts
+++ b/src/Umbraco.Web.UI.Client/src/packages/templating/stylesheets/tree/stylesheet-tree.repository.ts
@@ -36,6 +36,7 @@ export class UmbStylesheetTreeRepository
 	}
 
 	async requestRootTreeItems() {
+		console.log('stylesheet root');
 		await this.#init;
 
 		const { data, error } = await this.#treeDataSource.getRootItems();
@@ -49,6 +50,9 @@ export class UmbStylesheetTreeRepository
 
 	async requestTreeItemsOf(path: string | null) {
 		if (path === undefined) throw new Error('Cannot request tree item with missing path');
+		if (path === null || path === '/' || path === '') {
+			return this.requestRootTreeItems();
+		}
 
 		await this.#init;
 
diff --git a/src/Umbraco.Web.UI.Client/web-test-runner.config.mjs b/src/Umbraco.Web.UI.Client/web-test-runner.config.mjs
index 53d2347db4..fb036d48c2 100644
--- a/src/Umbraco.Web.UI.Client/web-test-runner.config.mjs
+++ b/src/Umbraco.Web.UI.Client/web-test-runner.config.mjs
@@ -140,6 +140,16 @@ export default {
 			</head>
       <body>
         <script type="module" src="${testFramework}"></script>
+				<script type="module">
+					/* Hack to disable Lit dev mode warnings */
+					const systemWarn = window.console.warn;
+					window.console.warn = (...args) => {
+						if (args[0].indexOf('Lit is in dev mode.') === 0) {
+							return;
+						}
+						systemWarn(...args);
+					};
+				</script>
         <script type="module">
 					import 'element-internals-polyfill';
 					import '@umbraco-ui/uui';
