fix(iframe): 修复 handler 为 undefined 时添加到 handlerCallbackMap 报错 (#483)

Tencent · Mar 30, 2023 · 9b5a7fb · 9b5a7fb
1 parent 1b45d30
commit 9b5a7fb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/wujie-core/src/iframe.ts b/packages/wujie-core/src/iframe.ts
@@ -390,7 +390,7 @@ function patchDocumentEffect(iframeWindow: Window): void {
     let callback = handlerCallbackMap.get(handler);
     const typeList = handlerTypeMap.get(handler);
     // 设置 handlerCallbackMap
-    if (!callback) {
+    if (!callback && handler) {
       callback = typeof handler === "function" ? handler.bind(this) : handler;
       handlerCallbackMap.set(handler, callback);
     }