diff --git a/lib/Page.js b/lib/Page.js
index 67a074097ad..50c5fc19ad9 100644
--- a/lib/Page.js
+++ b/lib/Page.js
@@ -260,7 +260,10 @@ class Page extends EventEmitter {
     }
     await result;
     helper.removeEventListeners([listener]);
-    return responses.get(this.mainFrame().url());
+    let response = responses.get(this.mainFrame().url());
+    if (!response)
+      throw new Error('Failed to navigate: ' + url);
+    return response;
   }
 
   /**
diff --git a/test/test.js b/test/test.js
index 3a0580edbaa..a3563bcd9c7 100644
--- a/test/test.js
+++ b/test/test.js
@@ -461,6 +461,15 @@ describe('Puppeteer', function() {
       }
       expect(error.message).toContain('SSL Certificate error');
     }));
+    it('should fail when main resources failed to load', SX(async function() {
+      let error = null;
+      try {
+        await page.navigate('chrome-devtools://devtools/bundled/inspector.html');
+      } catch (e) {
+        error = e;
+      }
+      expect(error.message).toContain('Failed to navigate');
+    }));
     it('should fail when exceeding maximum navigation timeout', SX(async function() {
       let error = null;
       // Hang for request to the empty.html