HTML sandbox Attribute

Definition and Usage

The sandbox attribute enables an extra set of restrictions for the content in an iframe.

When the sandbox attribute is present, and it will:

• treat the content as being from a unique origin
• block form submission
• block script execution
• disable APIs
• prevent links from targeting other browsing contexts
• prevent content from using plugins (through <embed>, <object>, <applet>, or other)
• prevent the content to navigate its top-level browsing context
• block automatically triggered features (such as automatically playing a video or automatically focusing a form control)

The value of the sandbox attribute can either be just sandbox (then all restrictions are applied), or a space-separated list of pre-defined values that will REMOVE the particular restrictions.

Applies to

The sandbox attribute can be used on the following element:

Browser Support

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