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HTMLDialogElement: cancel event

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨March 2022⁩.

The cancel event fires on a <dialog> element when the user instructs the browser that they wish to dismiss the current open dialog. The browser fires this event when the user presses the Esc key.

This event is cancelable but can not bubble.

When a <dialog> is dismissed with the Esc key, both the cancel and close events are fired.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("cancel", (event) => { })

oncancel = (event) => { }

Event type

A generic Event.

Examples

Canceling a dialog

HTML

<dialog class="example-dialog">
  <button class="close">Close</button>
</dialog>

<button class="open-dialog">Open dialog</button>

<div class="result"></div>

JavaScript

const result = document.querySelector(".result");

const dialog = document.querySelector(".example-dialog");

dialog.addEventListener("cancel", (event) => {
  result.textContent = "dialog was canceled";
});

const openDialog = document.querySelector(".open-dialog");
openDialog.addEventListener("click", () => {
  if (typeof dialog.showModal === "function") {
    dialog.showModal();
    result.textContent = "";
  } else {
    result.textContent = "The dialog API is not supported by this browser";
  }
});

const closeButton = document.querySelector(".close");
closeButton.addEventListener("click", () => {
  dialog.close();
});

Result

Specifications

Specification
HTML> # event-cancel>
HTML> # handler-oncancel>

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`cancel_event`	37	79	98	24	15.4	37	98	24	15.4	3.0	37	15.4