diff --git a/src/state/fragment-state.ts b/src/state/fragment-state.ts
index 03227c2..9e87631 100644
--- a/src/state/fragment-state.ts
+++ b/src/state/fragment-state.ts
@@ -57,6 +57,10 @@ export async function readStateFromFragment(): Promise<State | null> {
         // For testing
         const src = decodeURIComponent(serialized.substring('src:'.length));
         return createInitialState(null, src);
+      } else if (serialized.startsWith('testpath:')) {
+        // For testing
+        const path = decodeURIComponent(serialized.substring('testpath:'.length));
+        return createInitialState(null, '...', path);
       }
       let obj;
       try {
diff --git a/src/state/initial-state.ts b/src/state/initial-state.ts
index 66d7170..26cd638 100644
--- a/src/state/initial-state.ts
+++ b/src/state/initial-state.ts
@@ -6,7 +6,7 @@ import { State } from './app-state';
 export const defaultSourcePath = '/playground.scad';
 export const defaultModelColor = '#f9d72c';
   
-export function createInitialState(state: State | null, content: string = defaultScad): State {
+export function createInitialState(state: State | null, content = defaultScad, activePath = defaultSourcePath): State {
 
   type Mode = State['view']['layout']['mode'];
   const mode: Mode = window.matchMedia("(min-width: 768px)").matches 
@@ -14,8 +14,8 @@ export function createInitialState(state: State | null, content: string = defaul
 
   const initialState: State = {
     params: {
-      activePath: defaultSourcePath,
-      sources: [{path: defaultSourcePath, content}],
+      activePath: activePath,
+      sources: [{path: activePath, content}],
       features: [],
       exportFormat2D: 'svg',
       exportFormat3D: 'glb',
diff --git a/tests/e2e.test.js b/tests/e2e.test.js
index 8f7ea65..de3eb94 100644
--- a/tests/e2e.test.js
+++ b/tests/e2e.test.js
@@ -21,7 +21,8 @@ beforeEach(async () => {
 
 afterEach(async () => {
   // console.log('Messages:', JSON.stringify(messages, null, 2));
-  console.log('Messages:', JSON.stringify(messages.map(({text}) => text), null, 2));
+  const testName = expect.getState().currentTestName;
+  console.log(`[${testName}] Messages:`, JSON.stringify(messages.map(({text}) => text), null, 2));
     
   const errors = messages.filter(msg =>
       msg.type === 'error' &&
@@ -34,6 +35,9 @@ afterEach(async () => {
 function loadSrc(src) {
   return page.goto(url + '#src:' + encodeURIComponent(src));
 }
+function loadPath(path) {
+  return page.goto(url + '#testpath:' + encodeURIComponent(path));
+}
 async function waitForViewer() {
   await page.waitForSelector('model-viewer');
   await page.waitForFunction(() => {
@@ -102,6 +106,12 @@ describe('e2e', () => {
     expect3DManifold();
   }, longTimeout);
 
+  test('load a demo by path', async () => {
+    await loadPath('/libraries/closepoints/demo_3D_art.scad');
+    await waitForViewer();
+    expect3DPolySet();
+  }, longTimeout);
+
   test('customizer & windows line endings work', async () => {
     await loadSrc([
       'myVar = 10;',