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HTML ononline Attribute

Definition and Usage

The ononline attribute fires when the browser starts to work online.

Tip: The ononline attribute is the opposite of the onoffline attribute.

Applies to

The ononline attribute is part of the Event Attributes, and can be used on the following element:

Elements Event
<body> ononline

Body Example

Execute a JavaScript when the browser starts to work online:

<body ononline="myFunction()">
Try it Yourself »

Browser Support

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

Event Attribute
ononline Not supported Deprecated as of IE11
3.0 Not supported Not supported