Encode String to URL friendly format

Hi.

I tried to encode a string into URL friendly format but it seems it's not working correctly.

 var username:String = "Test 123"

 var encodedUsername:String = WWW.EscapeURL(username);

 Debug.Log("Encoded username is: "+encodedUsername);  //The result is "Test+123" instead of supposedly "Test%20123"

while the other set of code I have:

 var email:String = "email@email.com"

 var encodedEmail:String = WWW.EscapeURL(email);

 Debug.Log("Encoded email is: "+encodedEmail);    //The result is "email%40email.com

Is there anything I missed? Thanks in advance.

I thought of manually using `Replace(" ","%20")` but then this won't work with other characters and I can't predict what characters will be used by the user.