Document.createCDATASection()

createCDATASection() creates a new CDATA section node, and returns it.

Syntax

CDATASectionNode = document.createCDATASection(data) 
  • CDATASectionNode is a CDATA Section node.
  • data is a string containing the data to be added to the CDATA Section.

Example

var docu = new DOMParser().parseFromString('<xml></xml>',  "application/xml")

var cdata = docu.createCDATASection('Some <CDATA> data & then some');

docu.getElementsByTagName('xml')[0].appendChild(cdata);

alert(new XMLSerializer().serializeToString(docu));
// Displays: <xml><![CDATA[Some <CDATA> data & then some]]></xml>

Notes

  • This will only work with XML, not HTML documents (as HTML documents do not support CDATA sections); attempting it on an HTML document will throw NOT_SUPPORTED_ERR.
  • Will throw a NS_ERROR_DOM_INVALID_CHARACTER_ERR exception if one tries to submit the closing CDATA sequence ("]]>") as part of the data, so unescaped user-provided data cannot be safely used without with this method getting this exception (createTextNode() can often be used in its place).

Specification

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic supportChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

Document Tags and Contributors

Contributors to this page: fscholz, teoli, SphinxKnight, kscarfone, Cobra, Sheppy, ethertank, Brettz9
Last updated by: fscholz,