CDATASection interface represents a CDATA section that can be used within XML to include extended portions of unescaped text. When inside a CDATA section, the symbols
& don't need escaping as they normally do.
In XML, a CDATA section looks like:
<![CDATA[ … ]]>
<foo> Here is a CDATA section: <![CDATA[ < > & ]]> with all kinds of unescaped text. </foo>
The only sequence which is not allowed within a CDATA section is the closing sequence of a CDATA section itself,
Note: CDATA sections should not be used within HTML they are considered as comments and not displayed.