diff --git a/src/preload/wikiOperation.ts b/src/preload/wikiOperation.ts
index 5e6ed43c..d9e65006 100644
--- a/src/preload/wikiOperation.ts
+++ b/src/preload/wikiOperation.ts
@@ -51,7 +51,7 @@ ipcRenderer.on(WikiChannel.addTiddler, async (event, title: string, text: string
   `);
   // wait for fs to be settle
   setTimeout(() => {
-    ipcRenderer.invoke(WikiChannel.addTiddlerDone);
+    void ipcRenderer.invoke(WikiChannel.addTiddlerDone);
   }, 1000);
 });
 // get tiddler text
diff --git a/src/services/view/index.ts b/src/services/view/index.ts
index 2e5249f1..8334030c 100644
--- a/src/services/view/index.ts
+++ b/src/services/view/index.ts
@@ -303,7 +303,7 @@ export class View implements IViewService {
     }
     // fix some case that local ip can't be load
     // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
-    const urlToReplace = (rememberLastPageVisited && workspace.lastUrl) || workspace.homeUrl;
+    const urlToReplace = rememberLastPageVisited ? workspace.lastUrl ?? workspace.homeUrl : workspace.homeUrl;
     const portReplacedUrl = replaceUrlPortWithSettingPort(urlToReplace, workspace.port);
     const hostReplacedUrl = await getLocalHostUrlWithActualIP(portReplacedUrl);
     logger.debug(`Load initialUrl: ${hostReplacedUrl} for windowName ${windowName} for workspace ${workspace.name}`, {
diff --git a/src/services/view/interface.ts b/src/services/view/interface.ts
index 80484f6c..9664c8df 100644
--- a/src/services/view/interface.ts
+++ b/src/services/view/interface.ts
@@ -9,6 +9,9 @@ import { WindowNames } from '@services/windows/WindowProperties';
  * BrowserView related things, the BrowserView is the webview like frame that renders our wiki website.
  */
 export interface IViewService {
+  /**
+   * Add a new browserView and load the url
+   */
   addView: (workspace: IWorkspace, windowName: WindowNames) => Promise<void>;
   addViewForAllBrowserViews(workspace: IWorkspace): Promise<void>;
   /**
@@ -34,6 +37,12 @@ export interface IViewService {
   reloadViewsWebContentsIfDidFailLoad: () => Promise<void>;
   removeAllViewOfWorkspace: (workspaceID: string) => void;
   removeView: (workspaceID: string, windowName: WindowNames) => void;
+  /**
+   * Bring an already created view to the front. If it happened to not created, will call `addView()` to create one.
+   * @param workspaceID id, can only be main workspace id, because only main workspace will have view created.
+   * @param windowName you can control main window or menubar window to have this view.
+   * @returns
+   */
   setActiveView: (workspaceID: string, windowName: WindowNames) => Promise<void>;
   setActiveViewForAllBrowserViews(workspaceID: string): Promise<void>;
   setViewsAudioPref: (_shouldMuteAudio?: boolean) => void;
diff --git a/src/services/wiki/wikiOperations.ts b/src/services/wiki/wikiOperations.ts
index 0b8eb1c6..a7af4215 100644
--- a/src/services/wiki/wikiOperations.ts
+++ b/src/services/wiki/wikiOperations.ts
@@ -5,6 +5,11 @@ import { IViewService } from '@services/view/interface';
 import { IWindowService } from '@services/windows/interface';
 import { WindowNames } from '@services/windows/WindowProperties';
 
+function sendToMainWindow(type: WikiChannel, workspaceID: string, message: string): void {
+  const viewService = container.get<IViewService>(serviceIdentifier.View);
+  const browserView = viewService.getView(workspaceID, WindowNames.main);
+  browserView?.webContents?.send?.(type, message);
+}
 /**
  * Handle sending message to trigger operations defined in `src/preload/wikiOperation.ts`
  */
@@ -14,20 +19,9 @@ export const wikiOperations = {
     const createWorkspaceWindow = windowService.get(WindowNames.addWorkspace);
     createWorkspaceWindow?.webContents?.send(WikiChannel.createProgress, message);
   },
-  [WikiChannel.syncProgress]: (workspaceID: string, message: string): void => {
-    const viewService = container.get<IViewService>(serviceIdentifier.View);
-    const browserView = viewService.getView(workspaceID, WindowNames.main);
-    if (browserView !== undefined) {
-      browserView.webContents.send(WikiChannel.syncProgress, message);
-    }
-  },
-  [WikiChannel.generalNotification]: (workspaceID: string, message: string): void => {
-    const viewService = container.get<IViewService>(serviceIdentifier.View);
-    const browserView = viewService.getView(workspaceID, WindowNames.main);
-    if (browserView !== undefined) {
-      browserView.webContents.send(WikiChannel.generalNotification, message);
-    }
-  },
+  [WikiChannel.syncProgress]: (workspaceID: string, message: string): void => sendToMainWindow(WikiChannel.syncProgress, workspaceID, message),
+  [WikiChannel.generalNotification]: (workspaceID: string, message: string): void => sendToMainWindow(WikiChannel.generalNotification, workspaceID, message),
+  [WikiChannel.openTiddler]: (workspaceID: string, tiddlerName: string): void => sendToMainWindow(WikiChannel.openTiddler, workspaceID, tiddlerName),
   // TODO: add more operations here from `src/preload/wikiOperation.ts`
 };
 export type IWikiOperations = typeof wikiOperations;
diff --git a/src/services/workspacesView/index.ts b/src/services/workspacesView/index.ts
index d96d7965..618defff 100644
--- a/src/services/workspacesView/index.ts
+++ b/src/services/workspacesView/index.ts
@@ -287,7 +287,19 @@ export class WorkspaceView implements IWorkspaceViewService {
     if (newWorkspace === undefined) {
       throw new Error(`Workspace id ${nextWorkspaceID} does not exist. When setActiveWorkspaceView().`);
     }
-    logger.debug(`Set active workspace oldActiveWorkspace.id: ${oldActiveWorkspace?.id ?? 'undefined'} nextWorkspaceID: ${nextWorkspaceID}`);
+    logger.debug(
+      `Set active workspace oldActiveWorkspace.id: ${oldActiveWorkspace?.id ?? 'undefined'} nextWorkspaceID: ${nextWorkspaceID} newWorkspace.isSubWiki ${String(
+        newWorkspace.isSubWiki,
+      )}`,
+    );
+    if (newWorkspace.isSubWiki && typeof newWorkspace.mainWikiID === 'string') {
+      logger.debug(`${nextWorkspaceID} is a subwiki, set its main wiki ${newWorkspace.mainWikiID} to active instead.`);
+      await this.setActiveWorkspaceView(newWorkspace.mainWikiID);
+      if (typeof newWorkspace.tagName === 'string') {
+        this.wikiService.wikiOperation(WikiChannel.openTiddler, newWorkspace.mainWikiID, newWorkspace.tagName);
+      }
+      return;
+    }
     // later process will use the current active workspace
     await this.workspaceService.setActiveWorkspace(nextWorkspaceID, oldActiveWorkspace?.id);
     const asyncTasks: Array<Promise<unknown>> = [];
diff --git a/src/services/workspacesView/interface.ts b/src/services/workspacesView/interface.ts
index 5bed1303..d0239fc2 100644
--- a/src/services/workspacesView/interface.ts
+++ b/src/services/workspacesView/interface.ts
@@ -46,6 +46,10 @@ export interface IWorkspaceViewService {
    */
   removeWorkspaceView(workspaceID: string): Promise<void>;
   restartWorkspaceViewService(workspaceID?: string | undefined): Promise<void>;
+  /**
+   * If is main workspace, set workspace to active and load the url.
+   * If is sub workspace, just load url with #tag for its main workspace.
+   */
   setActiveWorkspaceView(workspaceID: string): Promise<void>;
   setWorkspaceView(workspaceID: string, workspaceOptions: IWorkspace): Promise<void>;
   setWorkspaceViews(workspaces: Record<string, IWorkspace>): Promise<void>;