diff --git a/common/network_manager.go b/common/network_manager.go
index a5c405180..7f63eb7aa 100644
--- a/common/network_manager.go
+++ b/common/network_manager.go
@@ -7,6 +7,7 @@ import (
 	"net"
 	"net/url"
 	"strconv"
+	"strings"
 	"sync"
 	"time"
 
@@ -34,6 +35,15 @@ type Credentials struct {
 	Password string `js:"password"`
 }
 
+// IsEmpty returns true if the credentials are empty.
+func (c Credentials) IsEmpty() bool {
+	c = Credentials{
+		Username: strings.TrimSpace(c.Username),
+		Password: strings.TrimSpace(c.Password),
+	}
+	return c == (Credentials{})
+}
+
 type metricInterceptor interface {
 	urlTagName(urlTag string, method string) (string, bool)
 }