diff --git a/.travis.yml b/.travis.yml
index 0c840f4..82154cf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,10 +6,6 @@ go:
 addons:
   apt:
     chrome: stable
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - libstdc++6
 before_install:
   - go get github.com/mattn/goveralls
 script:
diff --git a/LICENSE b/LICENSE
index 8e2e6c2..09ca771 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016-2017 Kenneth Shaw
+Copyright (c) 2016-2018 Kenneth Shaw
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/nav_test.go b/nav_test.go
index b144fb2..325a75f 100644
--- a/nav_test.go
+++ b/nav_test.go
@@ -111,7 +111,7 @@ func TestNavigateToHistoryEntry(t *testing.T) {
 
 	var entries []*page.NavigationEntry
 	var index int64
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"image.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/image.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -123,7 +123,7 @@ func TestNavigateToHistoryEntry(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"form.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/form.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -155,7 +155,7 @@ func TestNavigateBack(t *testing.T) {
 	c := testAllocate(t, "")
 	defer c.Release()
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"form.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/form.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -168,7 +168,7 @@ func TestNavigateBack(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"image.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/image.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -200,14 +200,14 @@ func TestNavigateForward(t *testing.T) {
 	c := testAllocate(t, "")
 	defer c.Release()
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"form.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/form.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	time.Sleep(50 * time.Millisecond)
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"image.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/image.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -252,7 +252,7 @@ func TestStop(t *testing.T) {
 	c := testAllocate(t, "")
 	defer c.Release()
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"form.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/form.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -271,7 +271,7 @@ func TestReload(t *testing.T) {
 	c := testAllocate(t, "")
 	defer c.Release()
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"form.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/form.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -309,7 +309,7 @@ func TestCaptureScreenshot(t *testing.T) {
 	c := testAllocate(t, "")
 	defer c.Release()
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"image.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/image.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -342,7 +342,7 @@ func TestCaptureScreenshot(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"form.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/form.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -378,7 +378,7 @@ func TestRemoveOnLoadScript(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	err = c.Run(defaultContext, Navigate(testdataDir+"/"+"form.html"))
+	err = c.Run(defaultContext, Navigate(testdataDir+"/form.html"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -390,7 +390,7 @@ func TestLocation(t *testing.T) {
 	t.Parallel()
 
 	var err error
-	expurl := testdataDir + "/" + "form.html"
+	expurl := testdataDir + "/form.html"
 
 	c := testAllocate(t, "")
 	defer c.Release()
@@ -409,7 +409,7 @@ func TestLocation(t *testing.T) {
 	}
 
 	if urlstr != expurl {
-		t.Fatalf("expected to be on form.html,got: %s", urlstr)
+		t.Fatalf("expected to be on form.html, got: %s", urlstr)
 	}
 }
 
diff --git a/query.go b/query.go
index f49744e..c2b51e6 100644
--- a/query.go
+++ b/query.go
@@ -11,11 +11,12 @@ import (
 	"strings"
 	"sync"
 
+	"github.com/disintegration/imaging"
+
 	"github.com/chromedp/cdproto/cdp"
 	"github.com/chromedp/cdproto/css"
 	"github.com/chromedp/cdproto/dom"
 	"github.com/chromedp/cdproto/page"
-	"github.com/disintegration/imaging"
 )
 
 // Nodes retrieves the document nodes matching the selector.
@@ -475,7 +476,7 @@ func Screenshot(sel interface{}, picbuf *[]byte, opts ...QueryOption) Action {
 			return err
 		}
 
-		// crop to box model contents.
+		// crop to box model contents
 		cropped := imaging.Crop(img, image.Rect(
 			int(box.Margin[0])-pos[0], int(box.Margin[1])-pos[1],
 			int(box.Margin[4])-pos[0], int(box.Margin[5])-pos[1],
diff --git a/query_test.go b/query_test.go
index bf52e69..03fc73e 100644
--- a/query_test.go
+++ b/query_test.go
@@ -805,7 +805,7 @@ func TestSubmit(t *testing.T) {
 				t.Fatalf("got error: %v", err)
 			}
 			if title != "this is title" {
-				t.Errorf("expected title to be 'chromedp - Google Search', got: '%s'", title)
+				t.Errorf("expected title to be 'this is title', got: '%s'", title)
 			}
 		})
 	}
diff --git a/sel_test.go b/sel_test.go
index 3795a49..de95153 100644
--- a/sel_test.go
+++ b/sel_test.go
@@ -31,7 +31,6 @@ func TestWaitReady(t *testing.T) {
 	if err != nil {
 		t.Fatalf("got error: %v", err)
 	}
-
 }
 
 func TestWaitVisible(t *testing.T) {
@@ -59,7 +58,6 @@ func TestWaitVisible(t *testing.T) {
 	if err != nil {
 		t.Fatalf("got error: %v", err)
 	}
-
 }
 
 func TestWaitNotVisible(t *testing.T) {
@@ -92,7 +90,6 @@ func TestWaitNotVisible(t *testing.T) {
 	if err != nil {
 		t.Fatalf("got error: %v", err)
 	}
-
 }
 
 func TestWaitEnabled(t *testing.T) {
@@ -141,7 +138,6 @@ func TestWaitEnabled(t *testing.T) {
 	if value != "foo" {
 		t.Fatalf("expected value to be foo, got: %s", value)
 	}
-
 }
 
 func TestWaitSelected(t *testing.T) {