diff --git a/api-reports/2_12.txt b/api-reports/2_12.txt
index 4c87cd8b2..0cfacfef0 100644
--- a/api-reports/2_12.txt
+++ b/api-reports/2_12.txt
@@ -1028,7 +1028,6 @@ experimental/serviceworkers/ServiceWorkerContainer[ST] def controller: ServiceWo
 experimental/serviceworkers/ServiceWorkerContainer[ST] def getRegistration(scope: String = ""): js.Promise[js.UndefOr[ServiceWorkerRegistration]]
 experimental/serviceworkers/ServiceWorkerContainer[ST] def getRegistrations(): js.Promise[js.Array[ServiceWorkerRegistration]]
 experimental/serviceworkers/ServiceWorkerContainer[ST] var oncontrollerchange: js.Function1[Event, _]
-experimental/serviceworkers/ServiceWorkerContainer[ST] var onerror: js.Function1[ErrorEvent, _]
 experimental/serviceworkers/ServiceWorkerContainer[ST] var onmessage: js.Function1[MessageEvent, _]
 experimental/serviceworkers/ServiceWorkerContainer[ST] def ready: js.Promise[ServiceWorkerRegistration]
 experimental/serviceworkers/ServiceWorkerContainer[ST] def register(scriptURL: String, options: js.Object = new js.Object()): js.Promise[ServiceWorkerRegistration]
diff --git a/api-reports/2_13.txt b/api-reports/2_13.txt
index 5cf7be22c..3b07c10d8 100644
--- a/api-reports/2_13.txt
+++ b/api-reports/2_13.txt
@@ -1028,7 +1028,6 @@ experimental/serviceworkers/ServiceWorkerContainer[ST] def controller: ServiceWo
 experimental/serviceworkers/ServiceWorkerContainer[ST] def getRegistration(scope: String = ""): js.Promise[js.UndefOr[ServiceWorkerRegistration]]
 experimental/serviceworkers/ServiceWorkerContainer[ST] def getRegistrations(): js.Promise[js.Array[ServiceWorkerRegistration]]
 experimental/serviceworkers/ServiceWorkerContainer[ST] var oncontrollerchange: js.Function1[Event, _]
-experimental/serviceworkers/ServiceWorkerContainer[ST] var onerror: js.Function1[ErrorEvent, _]
 experimental/serviceworkers/ServiceWorkerContainer[ST] var onmessage: js.Function1[MessageEvent, _]
 experimental/serviceworkers/ServiceWorkerContainer[ST] def ready: js.Promise[ServiceWorkerRegistration]
 experimental/serviceworkers/ServiceWorkerContainer[ST] def register(scriptURL: String, options: js.Object = new js.Object()): js.Promise[ServiceWorkerRegistration]
diff --git a/src/main/scala/org/scalajs/dom/experimental/serviceworkers/ServiceWorkers.scala b/src/main/scala/org/scalajs/dom/experimental/serviceworkers/ServiceWorkers.scala
index ffd1ecbdd..3e30f61b6 100644
--- a/src/main/scala/org/scalajs/dom/experimental/serviceworkers/ServiceWorkers.scala
+++ b/src/main/scala/org/scalajs/dom/experimental/serviceworkers/ServiceWorkers.scala
@@ -381,15 +381,6 @@ trait ServiceWorkerContainer extends EventTarget {
    */
   var oncontrollerchange: js.Function1[Event, _] = js.native
 
-  /**
-   * The onerror property of the ServiceWorkerContainer interface is an event
-   * handler fired whenever an error event occurs in the associated service
-   * workers.
-   *
-   * MDN
-   */
-  var onerror: js.Function1[ErrorEvent, _] = js.native
-
   /**
    * The onmessage property of the ServiceWorkerContainer interface is an event
    * handler fired whenever a message event occurs — when incoming messages are