From 5ecb22d8d5a231d6eb5ecbd44f5ed18f8b38eedf Mon Sep 17 00:00:00 2001
From: Joshua Horton <jahorton@sil.org>
Date: Fri, 24 Jan 2025 13:58:02 +0700
Subject: [PATCH] fix(ios): prevent message-handler collision

Fixes: KEYMAN-IOS-1J
Fixes: #13036
Cherry-pick-of: #13037
---
 .../Classes/Keyboard/KeymanWebViewController.swift             | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ios/engine/KMEI/KeymanEngine/Classes/Keyboard/KeymanWebViewController.swift b/ios/engine/KMEI/KeymanEngine/Classes/Keyboard/KeymanWebViewController.swift
index 212f3e0734..458dabfb53 100644
--- a/ios/engine/KMEI/KeymanEngine/Classes/Keyboard/KeymanWebViewController.swift
+++ b/ios/engine/KMEI/KeymanEngine/Classes/Keyboard/KeymanWebViewController.swift
@@ -165,6 +165,9 @@ class KeymanWebViewController: UIViewController {
 
   override func viewWillAppear(_ animated: Bool) {
     super.viewWillAppear(animated)
+    if #available(iOSApplicationExtension 14.0, *) {
+      self.userContentController.removeAllScriptMessageHandlers()
+    }
     self.userContentController.add(self, name: keymanWebViewName)
   }