diff --git a/.travis.yml b/.travis.yml
index 8b3b5a29..748a07a7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,6 @@ matrix:
     env: GO111MODULE=on
   - go: 1.13.x
   - go: master
-    env: GO111MODULE=on
 
 git:
   depth: 10
diff --git a/README.md b/README.md
index b488f159..dfedd8a2 100644
--- a/README.md
+++ b/README.md
@@ -1678,11 +1678,19 @@ func main() {
 	}
 
 	g.Go(func() error {
-		return server01.ListenAndServe()
+		err := server01.ListenAndServe()
+		if err != nil && err != http.ErrServerClosed {
+			log.Fatal(err)
+		}
+		return err
 	})
 
 	g.Go(func() error {
-		return server02.ListenAndServe()
+		err := server02.ListenAndServe()
+		if err != nil && err != http.ErrServerClosed {
+			log.Fatal(err)
+		}
+		return err
 	})
 
 	if err := g.Wait(); err != nil {
diff --git a/context.go b/context.go
index 86094cac..509ce081 100644
--- a/context.go
+++ b/context.go
@@ -393,8 +393,7 @@ func (c *Context) QueryArray(key string) []string {
 
 func (c *Context) getQueryCache() {
 	if c.queryCache == nil {
-		c.queryCache = make(url.Values)
-		c.queryCache, _ = url.ParseQuery(c.Request.URL.RawQuery)
+		c.queryCache = c.Request.URL.Query()
 	}
 }
 
diff --git a/render/render_test.go b/render/render_test.go
index b27134ff..95a01b63 100644
--- a/render/render_test.go
+++ b/render/render_test.go
@@ -347,7 +347,17 @@ func TestRenderRedirect(t *testing.T) {
 	}
 
 	w = httptest.NewRecorder()
-	assert.Panics(t, func() { assert.NoError(t, data2.Render(w)) })
+	assert.PanicsWithValue(t, "Cannot redirect with status code 200", func() { data2.Render(w) })
+
+	data3 := Redirect{
+		Code:     http.StatusCreated,
+		Request:  req,
+		Location: "/new/location",
+	}
+
+	w = httptest.NewRecorder()
+	err = data3.Render(w)
+	assert.NoError(t, err)
 
 	// only improve coverage
 	data2.WriteContentType(w)
diff --git a/tree.go b/tree.go
index 371d5ad1..41947570 100644
--- a/tree.go
+++ b/tree.go
@@ -65,10 +65,9 @@ func min(a, b int) int {
 func countParams(path string) uint8 {
 	var n uint
 	for i := 0; i < len(path); i++ {
-		if path[i] != ':' && path[i] != '*' {
-			continue
+		if path[i] == ':' || path[i] == '*' {
+			n++
 		}
-		n++
 	}
 	if n >= 255 {
 		return 255