1 files changed, 19 insertions, 0 deletions
diff --git a/mobile/android/actors/GeckoViewFormValidationChild.sys.mjs b/mobile/android/actors/GeckoViewFormValidationChild.sys.mjs
new file mode 100644
index 0000000000..869271cfe7
--- /dev/null
+++ b/mobile/android/actors/GeckoViewFormValidationChild.sys.mjs
@@ -0,0 +1,19 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { GeckoViewActorChild } from "resource://gre/modules/GeckoViewActorChild.sys.mjs";
+
+export class GeckoViewFormValidationChild extends GeckoViewActorChild {
+  handleEvent(aEvent) {
+    switch (aEvent.type) {
+      case "MozInvalidForm": {
+        // Handle invalid form submission. If we don't hook up to this,
+        // invalid forms are allowed to be submitted!
+        aEvent.preventDefault();
+        // We should show the validation message, bug 1510450.
+        break;
+      }
+    }
+  }
+}