Definition and Usage The srcdoc attribute specifies the HTML content of the page to show in the inline frame. Tip: This attribute is expected to be used together with the sandbox and …

Nov 21, 2025 · The srcdoc property of the HTMLIFrameElement interface gets or sets the inline HTML markup of the frame's document.

So, the srcdoc attribute overrides the content embedded using src attribute. Demo (Note: The seamless attribute has since been removed, and another answer describes how sandbox …

Jan 21, 2021 · History navigation toward about:srcdoc is supported in Chrome & Firefox. I double checked this was working independently of a potential backforward cache. I tested Firefox 87. …

Jul 12, 2025 · The HTML srcdoc attribute is used to specify the HTML content of the page to show in the inline frame. This attribute is anticipated to be used beside the sandbox and seamless …

Dec 17, 2025 · A URL matches about:srcdoc if its scheme is " about ", its path contains a single string " srcdoc ", its query is null, its username and password are the empty string, and its host …

The srcdoc attribute is a feature associated with the <iframe> HTML element, enabling web developers to specify the HTML content of the iframe directly inline within the attribute, rather …

about:srcdoc This URL commits when an iframe is created with a srcdoc parameter to define its contents. The contents can only be defined by the parent (or a same-origin document with …

Learn about the HTML srcdoc attribute, its usage, and how it allows you to embed HTML content directly in an iframe.

3 days ago · Here a blog uses the srcdoc attribute in conjunction with the sandbox attribute described below to provide users of user agents that support this feature with an extra layer of …