diff --git a/lib/ui/home/home_countdown_dialog_ui.dart b/lib/ui/home/dialogs/home_countdown_dialog_ui.dart
similarity index 100%
rename from lib/ui/home/home_countdown_dialog_ui.dart
rename to lib/ui/home/dialogs/home_countdown_dialog_ui.dart
diff --git a/lib/ui/home/dialogs/home_md_content_dialog_ui.dart b/lib/ui/home/dialogs/home_md_content_dialog_ui.dart
new file mode 100644
index 0000000..9e28b6b
--- /dev/null
+++ b/lib/ui/home/dialogs/home_md_content_dialog_ui.dart
@@ -0,0 +1,55 @@
+import 'package:fluent_ui/fluent_ui.dart';
+import 'package:flutter/material.dart' show Material;
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:starcitizen_doctor/common/io/rs_http.dart';
+import 'package:starcitizen_doctor/widgets/widgets.dart';
+
+class HomeMdContentDialogUI extends HookConsumerWidget {
+  final String title;
+  final String url;
+
+  const HomeMdContentDialogUI(
+      {super.key, required this.title, required this.url});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return Material(
+      child: ContentDialog(
+        constraints: BoxConstraints(
+          maxWidth: MediaQuery.of(context).size.width * .6,
+        ),
+        title: Text(title),
+        content: LoadingWidget(
+          onLoadData: _getContent,
+          childBuilder: (BuildContext context, String data) {
+            return SingleChildScrollView(
+              child: Padding(
+                padding: const EdgeInsets.only(left: 12, right: 12),
+                child: Column(
+                  mainAxisSize: MainAxisSize.min,
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: makeMarkdownView(data),
+                ),
+              ),
+            );
+          },
+        ),
+        actions: [
+          FilledButton(
+              child: const Padding(
+                padding: EdgeInsets.only(left: 8, right: 8, top: 2, bottom: 2),
+                child: Text("关闭"),
+              ),
+              onPressed: () {
+                Navigator.pop(context);
+              })
+        ],
+      ),
+    );
+  }
+
+  Future<String> _getContent() async {
+    final r = await RSHttp.getText(url);
+    return r;
+  }
+}
diff --git a/lib/ui/home/home_ui.dart b/lib/ui/home/home_ui.dart
index 051532e..a727474 100644
--- a/lib/ui/home/home_ui.dart
+++ b/lib/ui/home/home_ui.dart
@@ -10,7 +10,8 @@ import 'package:starcitizen_doctor/common/helper/system_helper.dart';
 import 'package:starcitizen_doctor/widgets/widgets.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 
-import 'home_countdown_dialog_ui.dart';
+import 'dialogs/home_countdown_dialog_ui.dart';
+import 'dialogs/home_md_content_dialog_ui.dart';
 import 'home_ui_model.dart';
 
 class HomeUI extends HookConsumerWidget {
@@ -729,14 +730,14 @@ class HomeUI extends HookConsumerWidget {
         launchUrlString(homeState.appPlacardData?.link);
         return;
       case "doc":
-        // showDialog(
-        //     context: context,
-        //     builder: (context) {
-        //       return BaseUIContainer(
-        //           uiCreate: () => MDContentDialogUI(),
-        //           modelCreate: () => MDContentDialogUIModel(
-        //               appPlacardData?.title ?? "公告详情", appPlacardData?.link));
-        //     });
+        showDialog(
+            context: context,
+            builder: (context) {
+              return HomeMdContentDialogUI(
+                title: homeState.appPlacardData?.title ?? "公告详情",
+                url: homeState.appPlacardData?.link,
+              );
+            });
         return;
     }
   }
diff --git a/lib/ui/home/home_ui_model.dart b/lib/ui/home/home_ui_model.dart
index 50ff6cf..9278cab 100644
--- a/lib/ui/home/home_ui_model.dart
+++ b/lib/ui/home/home_ui_model.dart
@@ -176,20 +176,6 @@ class HomeUIModel extends _$HomeUIModel {
       appVersionData: appGlobalState.networkVersionData!,
     );
 
-    // if (await File(
-    //         "${AppConf.applicationSupportDir}\\webview_data\\enable_webview_localization_capture")
-    //     .exists()) {
-    //   webViewModel.enableCapture = true;
-    //   BaseUIContainer(
-    //           uiCreate: () => WebviewLocalizationCaptureUI(),
-    //           modelCreate: () =>
-    //               WebviewLocalizationCaptureUIModel(webViewModel))
-    //       .push(context!)
-    //       .then((_) {
-    //     webViewModel.enableCapture = false;
-    //   });
-    // }
-
     await Future.delayed(const Duration(milliseconds: 500));
     await webViewModel.launch(url, appGlobalState.networkVersionData!);
   }
@@ -264,9 +250,10 @@ class HomeUIModel extends _$HomeUIModel {
 
   Future _loadRRS() async {
     try {
+      final rssVideoItems = await RSSApi.getRssVideo();
+      final rssTextItems = await RSSApi.getRssText();
       state = state.copyWith(
-          rssVideoItems: await RSSApi.getRssVideo(),
-          rssTextItems: await RSSApi.getRssText());
+          rssVideoItems: rssVideoItems, rssTextItems: rssTextItems);
       dPrint("RSS update Success !");
     } catch (e) {
       dPrint("_loadRRS Error:$e");
diff --git a/lib/widgets/widgets.dart b/lib/widgets/widgets.dart
index f9bf759..85f6ef7 100644
--- a/lib/widgets/widgets.dart
+++ b/lib/widgets/widgets.dart
@@ -1,5 +1,7 @@
 import 'package:fluent_ui/fluent_ui.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:go_router/go_router.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 import 'package:window_manager/window_manager.dart';
 import 'package:markdown_widget/config/all.dart';
@@ -141,3 +143,49 @@ CustomTransitionPage<T> myPageBuilder<T>(
         );
       });
 }
+
+class LoadingWidget<T> extends HookConsumerWidget {
+  final T? data;
+  final Future<T?> Function()? onLoadData;
+  final Widget Function(BuildContext context, T data) childBuilder;
+
+  const LoadingWidget(
+      {super.key, this.data, required this.childBuilder, this.onLoadData});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final dataState = useState<T?>(null);
+    final errorMsg = useState("");
+    useEffect(() {
+      if (data == null && onLoadData != null) {
+        _loadData(dataState, errorMsg);
+        return null;
+      }
+      return null;
+    }, const []);
+
+    if (errorMsg.value.isNotEmpty) {
+      return Button(
+        onPressed: () {
+          _loadData(dataState, errorMsg);
+        },
+        child: Center(
+          child: Text(errorMsg.value),
+        ),
+      );
+    }
+    if (dataState.value == null && data == null) return makeLoading(context);
+    return childBuilder(context, (data ?? dataState.value) as T);
+  }
+
+  void _loadData(
+      ValueNotifier<T?> dataState, ValueNotifier<String> errorMsg) async {
+    errorMsg.value = "";
+    try {
+      final r = await onLoadData!();
+      dataState.value = r;
+    } catch (e) {
+      errorMsg.value = e.toString();
+    }
+  }
+}
diff --git a/rust/src/http_package/mod.rs b/rust/src/http_package/mod.rs
index dd985e6..3cf961f 100644
--- a/rust/src/http_package/mod.rs
+++ b/rust/src/http_package/mod.rs
@@ -94,7 +94,7 @@ fn _reade_resp_header(r_header: &HeaderMap) -> HashMap<String, String> {
     for ele in r_header {
         resp_headers.insert(
             ele.0.as_str().to_string(),
-            ele.1.to_str().unwrap().to_string(),
+            ele.1.to_str().unwrap_or("").to_string(),
         );
     }
     resp_headers