diff --git a/frontend/src/lib/utils.ts b/frontend/src/lib/utils.ts
index 24730cf6..0775c9ae 100644
--- a/frontend/src/lib/utils.ts
+++ b/frontend/src/lib/utils.ts
@@ -18,29 +18,27 @@ export const externalLinkClassNoUnderline = "text-primary hover:underline";
  * In iframe context, sends message to parent window to handle clipboard operation.
  */
 export async function copyToClipboard(text: string): Promise<void> {
-  const isInIframe = window.self !== window.top;
   const message = {
     type: POST_MESSAGE_TYPES.COPY_TO_CLIPBOARD,
     text,
   } as const;
 
-  if (isInIframe) {
-    try {
-      // Request parent window to copy
-      sendToParent(message);
-      console.log(
-        "[copyToClipboard] iframe mode → postMessage to parent",
-        message,
-      );
-      return;
-    } catch (error) {
-      console.warn("[copyToClipboard] iframe postMessage failed", error);
-    }
+  console.log("[copyToClipboard] called, text length:", text.length);
+
+  // 始终发送 postMessage，由 sendToParent 内部判断是否为 iframe 环境
+  // 与 openSkillDialog 等其他 iframe 通信保持一致
+  try {
+    sendToParent(message);
+  } catch {
+    // no-op
   }
 
-  // Direct clipboard access when not in iframe
-  console.log("[copyToClipboard] direct mode", message);
-  await navigator.clipboard.writeText(text);
+  // 同时也尝试直接写剪贴板（非 iframe 场景兜底）
+  try {
+    await navigator.clipboard.writeText(text);
+  } catch {
+    // no-op: 在 iframe 环境下由父窗口处理
+  }
 }
 
 /**