srcdocThe srcdoc attribute for the <iframe> HTML element sets a string of HTML to embed in the document. The value of srcdoc overrides loading a document from the src attribute.widely2020-01-152022-07-15https://html.spec.whatwg.org/multipage/iframe-embed-object.html#attr-iframe-srcdociframe-srcdochttps://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/srcdocapi.HTMLIFrameElement.srcdochtml.elements.iframe.srcdochttps://nowyoucanuse.com/features--iframe-srcdoc.html