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HTML srcdoc Attribute

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 seamless attributes.

If a browser supports the srcdoc attribute, it will override the content specified in the src attribute (if present).

If a browser does NOT support the srcdoc attribute, it will show the file specified in the src attribute instead (if present).

Applies to

The srcdoc attribute can be used on the following element:

Element Attribute
<iframe> srcdoc


An <iframe> with a srcdoc attribute:

<iframe srcdoc="<p>Hello world!</p>" src="demo_iframe_srcdoc.htm"></iframe>
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Browser Support

The numbers in the table specify the first browser version that fully supports the attribute.

srcdoc 20.0 Not supported 25.0 6.0  15.0