diff --git a/Open Redirect/README.md b/Open Redirect/README.md
index d74315fc..ec2cfb7a 100644
--- a/Open Redirect/README.md	
+++ b/Open Redirect/README.md	
@@ -114,6 +114,14 @@ http://www.yoursite.com/http://www.theirsite.com/
 http://www.yoursite.com/folder/www.folder.com
 ```
 
+Using "?" characted, browser will translate it to "/?"
+
+```powershell
+http://www.yoursite.com?http://www.theirsite.com/
+http://www.yoursite.com?folder/www.folder.com
+```
+
+
 Host/Split Unicode Normalization
 ```powershell
 https://evil.c℀.example.com . ---> https://evil.ca/c.example.com