HTMLIFrameElement: contentDocument property
If the iframe and the iframe's parent document are Same Origin, returns a Document (that is, the active document in the inline frame's nested browsing context), else returns null.
Example of contentDocument
const iframeDocument = document.querySelector("iframe").contentDocument;
iframeDocument.body.style.backgroundColor = "blue";
// This would turn the iframe blue.
Specifications
| Specification |
|---|
| HTML Standard # dom-iframe-contentdocument |
Browser compatibility
BCD tables only load in the browser