HTML_HEADER_VALUE
- The group prevents HTML injection through HTTP header values.
- The security level Basic does not prevent any HTML injection.
- The security level Standard prevents injection of well known HTML tags (e.g. <img src="path">) as well as injection of well known HTML attribute names in a single or double quoted attribute value (e.g. ' href="URL").
- The security level Strict prevents injection of any kind of HTML tags as well as injection of any kind of HTML attribute names in a single or double quoted attribute value.
