Window: blur() method

The Window.blur() method does nothing.

Note: Historically, this method was the programmatic equivalent of the user shifting focus away from the current window. This behavior was removed due to hostile sites abusing this functionality. In Firefox, you can enable the old behavior with the dom.disable_window_flip preference.

Syntax

js
blur()

Parameters

None.

Return value

None (undefined).

Examples

js
window.blur();

Specifications

Specification
HTML Standard
# dom-window-blur

Browser compatibility

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