Add iframe load handling in Project.vue to update document title and favicon dynamically. This enhancement improves the user experience by ensuring the displayed content reflects the iframe's metadata.

frontend/src/views/Project.vue

@@ -2,9 +2,11 @@
   <div class="project-page">
     <iframe
       v-if="previewUrl"
+      ref="previewIframe"
       :src="previewUrl"
       class="preview-iframe"
       sandbox="allow-scripts allow-same-origin allow-forms"
+      @load="handleIframeLoad"
     ></iframe>
     <div v-if="!isInIframe" class="control-buttons">
       <button @click="goHome" class="control-btn back-btn" title="BACK HOME">
@@ -110,6 +112,7 @@ const drawerVisible = ref(false);
 const documentVisible = ref(false);
 const currentDocument = ref<Document | null>(null);
 const previewUrl = ref('');
+const previewIframe = ref<HTMLIFrameElement | null>(null);
 
 const isInIframe = computed(() => {
   return window.self !== window.top;
@@ -175,6 +178,48 @@ const formatDate = (dateString: string) => {
   return date.toLocaleString('zh-CN');
 };
 
+const handleIframeLoad = () => {
+  if (!previewIframe.value) return;
+  
+  try {
+    const iframeDoc = previewIframe.value.contentDocument || previewIframe.value.contentWindow?.document;
+    if (!iframeDoc) return;
+
+    // 更新 title
+    const iframeTitle = iframeDoc.title;
+    if (iframeTitle) {
+      document.title = iframeTitle;
+    }
+
+    // 更新 favicon
+    const faviconLink = iframeDoc.querySelector('link[rel="icon"], link[rel="shortcut icon"]') as HTMLLinkElement;
+    if (faviconLink) {
+      const faviconHref = faviconLink.href;
+      // 如果是相对路径，需要转换为绝对路径
+      let absoluteFaviconUrl = faviconHref;
+      if (faviconHref.startsWith('/') || !faviconHref.startsWith('http')) {
+        const iframeBaseUrl = new URL(previewUrl.value, window.location.origin);
+        absoluteFaviconUrl = new URL(faviconHref, iframeBaseUrl).href;
+      }
+
+      // 移除旧的 favicon
+      const existingFavicon = document.querySelector('link[rel="icon"], link[rel="shortcut icon"]');
+      if (existingFavicon) {
+        existingFavicon.remove();
+      }
+
+      // 添加新的 favicon
+      const link = document.createElement('link');
+      link.rel = 'icon';
+      link.href = absoluteFaviconUrl;
+      document.head.appendChild(link);
+    }
+  } catch (error) {
+    // 如果由于跨域问题无法访问 iframe 内容，静默失败
+    console.warn('无法访问 iframe 内容:', error);
+  }
+};
+
 onMounted(() => {
   loadProject();
 });