Format of HTTP response header names and values

The name of the HTTP response header you want to set or remove can only contain:

• Alphanumeric characters: a-z and A-Z
• The following special characters: - and _

The value of the HTTP response header you want to set can only contain:

• Alphanumeric characters: a-z and A-Z
• The following special characters: _ :;.,\/"'?!(){}[]@<>=-+*#$&`|~^%