Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The search event is fired when a search is initiated using an <input> element of type="search".
There are several ways a search can be initiated, such as by pressing Enter while the <input> is focused, or, if the incremental attribute is present, after a UA-defined timeout elapses since the most recent keystroke (with new keystrokes resetting the timeout so the firing of the event is debounced).
Current UA implementations of <input type="search"> have an additional control to clear the field. Using this control also fires the search event. In that case the value of the <input> element will be the empty string.
This event is not cancelable.