diff --git a/browser.go b/browser.go
index b8c1bdc..7b38d0b 100644
--- a/browser.go
+++ b/browser.go
@@ -14,6 +14,7 @@ import (
 
 	"github.com/chromedp/cdproto"
 	"github.com/chromedp/cdproto/cdp"
+	"github.com/chromedp/cdproto/runtime"
 	"github.com/chromedp/cdproto/target"
 	"github.com/mailru/easyjson"
 )
@@ -203,6 +204,14 @@ func (b *Browser) run(ctx context.Context) {
 					// these events?
 					continue
 				}
+				if msg.Method == cdproto.EventRuntimeExceptionThrown {
+					ev := new(runtime.EventExceptionThrown)
+					if err := json.Unmarshal(msg.Params, ev); err != nil {
+						b.errf("%s", err)
+						continue
+					}
+					b.errf("%+v\n", ev.ExceptionDetails)
+				}
 
 				page, ok := b.pages[sessionID]
 				if !ok {
diff --git a/chromedp_test.go b/chromedp_test.go
index 018ad26..76e9877 100644
--- a/chromedp_test.go
+++ b/chromedp_test.go
@@ -23,8 +23,11 @@ var (
 func testAllocate(t *testing.T, path string) (_ context.Context, cancel func()) {
 	ctx, cancel := NewContext(allocCtx)
 
-	if err := Run(ctx, Navigate(testdataDir+"/"+path)); err != nil {
-		t.Fatal(err)
+	// Only navigate if we want a path, otherwise leave the blank page.
+	if path != "" {
+		if err := Run(ctx, Navigate(testdataDir+"/"+path)); err != nil {
+			t.Fatal(err)
+		}
 	}
 
 	//if err := WithLogf(t.Logf)(c.c); err != nil {
diff --git a/nav_test.go b/nav_test.go
index 9a457c9..4b73dcd 100644
--- a/nav_test.go
+++ b/nav_test.go
@@ -56,14 +56,14 @@ func TestNavigationEntries(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if len(entries) != 2 {
-		t.Errorf("expected to have 2 navigation entry: got %d", len(entries))
+	if len(entries) != 1 {
+		t.Errorf("expected to have 1 navigation entry: got %d", len(entries))
 	}
-	if index != 1 {
-		t.Errorf("expected navigation index is 1, got: %d", index)
+	if index != 0 {
+		t.Errorf("expected navigation index is 0, got: %d", index)
 	}
 
-	expIdx, expEntries := 2, 3
+	expIdx, expEntries := 1, 2
 	for i, url := range tests {
 		if err := Run(ctx, Navigate(testdataDir+"/"+url)); err != nil {
 			t.Fatal(err)
@@ -77,7 +77,7 @@ func TestNavigationEntries(t *testing.T) {
 		if len(entries) != expEntries {
 			t.Errorf("test %d expected to have %d navigation entry: got %d", i, expEntries, len(entries))
 		}
-		if want := int64(i + 2); index != want {
+		if want := int64(i + 1); index != want {
 			t.Errorf("test %d expected navigation index is %d, got: %d", i, want, index)
 		}