diff --git a/Dockerfile b/Dockerfile
index 41b7b66..065bd17 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,6 +29,9 @@ RUN apt update \
     libgbm1 \
     libasound2 \
     libatspi2.0-0 \
+    # Needed by older Chromium only
+    libx11-xcb1 \
+    libxshmfence1 \
   && \
   apt purge --auto-remove -y
 
diff --git a/app/app.js b/app/app.js
index 292a5a0..b79b0f2 100644
--- a/app/app.js
+++ b/app/app.js
@@ -35,8 +35,10 @@ async function main() {
 
     if (true) {
         const browser = await puppeteer.launch({
+            dumpio: true,  // You may see dbus errors
             headless: true,
-            executablePath: "./node_modules/puppeteer/.local-chromium/linux-938248/chrome-linux/chrome",
+            executablePath: "./node_modules/puppeteer/.local-chromium/linux-938248/chrome-linux/chrome",  // puppeteer@~13.0.0
+            //executablePath: "./node_modules/puppeteer/.local-chromium/linux-884014/chrome-linux/chrome",  // puppeteer@~10.0.0, ~10.1.0
             args: [
                 '--disable-gpu',
                 '--disable-dev-shm-usage',
@@ -57,7 +59,7 @@ async function main() {
         await page.goto('https://www.example.com', {
             waitUntil: 'networkidle2',
         });
-        call = await page.screenshot({path: '/myapp/output/screenshot.png'});
+        call = await page.screenshot({path: '/myapp/output/screenshot.png', format: 'a4', fullPage: true });
         await page.close();
 
         // Save a page as PDF
@@ -65,7 +67,7 @@ async function main() {
         await page.goto('https://news.ycombinator.com', {
             waitUntil: 'networkidle2',
         });
-        call = await page.pdf({ path: '/myapp/output/screenshot.pdf', format: 'a4' });
+        call = await page.pdf({ path: '/myapp/output/screenshot.pdf', format: 'legal' });
         await page.close();
 
         // Save a page as PDF
@@ -73,6 +75,13 @@ async function main() {
         await page.goto('file:///myapp/content/index.html', {
             waitUntil: 'networkidle2',
         });
+
+        // page.on("pageerror", function(err) {  
+        //     theTempValue = err.toString();
+        //     console.log("Page error: " + theTempValue); 
+        // });
+
+        call = await page.screenshot({ path: '/myapp/output/screenshot2.png', format: 'a4', fullPage: true });
         call = await page.pdf({ path: '/myapp/output/screenshot2.pdf', format: 'Legal' });
         await page.close();