<?xml version="1.0" encoding="UTF-8"?>
<feature id="messageerror"><name>messageerror</name><description>The messageerror event fires on a target, such as a window or worker, when an incoming message cannot be deserialized. This event can fire for many types of messages, such as cross-document messages or broadcast channel messages.</description><group>messaging</group><group_name>Messaging</group_name><baseline><status>widely</status><low_date>2023-03-27</low_date><high_date>2025-09-27</high_date></baseline><support><browser name="chrome" version="60" supported="true"></browser><browser name="firefox" version="57" supported="true"></browser><browser name="safari" version="16.4" supported="true"></browser><browser name="edge" version="18" supported="true"></browser><browser name="chrome_android" version="60" supported="true"></browser><browser name="firefox_android" version="57" supported="true"></browser><browser name="safari_ios" version="16.4" supported="true"></browser></support><specifications><spec>https://html.spec.whatwg.org/multipage/indices.html#event-messageerror</spec><spec>https://w3c.github.io/ServiceWorker/#eventdef-serviceworkerglobalscope-messageerror</spec></specifications><caniuse></caniuse><mdn_url>https://developer.mozilla.org/docs/Web/API/Window/messageerror_event</mdn_url><compat_features><key>api.DedicatedWorkerGlobalScope.messageerror_event</key><key>api.MessagePort.messageerror_event</key><key>api.ServiceWorkerContainer.messageerror_event</key><key>api.ServiceWorkerGlobalScope.messageerror_event</key><key>api.Window.messageerror_event</key><key>api.Worker.messageerror_event</key></compat_features><canonical_url>https://nowyoucanuse.com/features--messageerror.html</canonical_url></feature>