Window: blur() method

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

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

BCD tables only load in the browser