Module iframe 

Attribute names for iframe (<iframe>) elements.

Purpose

The <iframe> element embeds another HTML document within the current page, commonly used for third-party widgets, embedded content, or sandboxed applications.

Common Attributes

• src: URL of the document to embed
• width/height: Dimensions of the iframe
• sandbox: Security restrictions for the embedded content
• loading: Lazy loading behavior
• allow: Feature policy permissions

Example

<iframe src="https://example.com/widget" width="600" height="400"
        sandbox="allow-scripts allow-same-origin"
        loading="lazy"></iframe>
<iframe src="untrusted.html" sandbox></iframe>
<iframe srcdoc="<p>Inline HTML content</p>" sandbox="allow-scripts"></iframe>

WHATWG Specification

• The iframe element

Constants

ALLOW

The allow attribute.

HEIGHT

The height attribute.

LOADING

The loading attribute.

NAME

The name attribute.

REFERRERPOLICY

The referrerpolicy attribute.

SANDBOX

The sandbox attribute.

SRC

The src attribute.

SRCDOC

The srcdoc attribute.

WIDTH

The width attribute.