fix: optimize client redirection and normalize trailing slashes

src/components/SiteTitle.astro

@@ -4,7 +4,7 @@ import config from 'virtual:starlight/user-config';
 const { siteTitle, siteTitleHref } = Astro.locals.starlightRoute;
 ---
 
-<a href={'/intro'} class='site-title sl-flex'>
+<a href={'/intro/'} class='site-title sl-flex'>
   {
     config.logo && logos.dark && (
       <>

src/modules/redirect.ts

@@ -2,8 +2,12 @@ export function getRedirectedPath(hash: string) {
   if (!hash || hash === '#/' || hash === '#') {
     return '/intro/';
   } else if (hash.startsWith('#/')) {
-    const [newPath, newHash] = hash.slice(2).split('?id=');
-    return newHash ? `/${newPath}/#${newHash}` : `/${newPath}/`;
+    const [rawPath, newHash] = hash.slice(2).split('?id=');
+    const cleanPath = rawPath.replace(/^\/+|\/+$/g, '');
+    if (!cleanPath) {
+      return '/intro/';
+    }
+    return newHash ? `/${cleanPath}/#${newHash}` : `/${cleanPath}/`;
   } else {
     return '/intro/';
   }

src/pages/index.astro

@@ -9,10 +9,8 @@
 -->
 <script>
   import { getRedirectedPath } from '../modules/redirect';
-  document.addEventListener('DOMContentLoaded', () => {
-    const hash = getRedirectedPath(window.location.hash);
-    window.location.replace(hash);
-  });
+  const hash = getRedirectedPath(window.location.hash);
+  window.location.replace(hash);
 </script>
 <style>
   .loader {

tests/redirect.test.ts

@@ -27,8 +27,23 @@ describe('getRedirectedPath', () => {
     expect(result).toBe('/path/');
   });
 
+  it('should redirect "#/path/" with trailing slash to /path/ without duplicate slashes', () => {
+    const result = getRedirectedPath('#/path/');
+    expect(result).toBe('/path/');
+  });
+
   it('should redirect "#/path?id=hash" to /path/#hash', () => {
     const result = getRedirectedPath('#/path?id=hash');
     expect(result).toBe('/path/#hash');
   });
+
+  it('should redirect "#/path/?id=hash" with trailing slash to /path/#hash', () => {
+    const result = getRedirectedPath('#/path/?id=hash');
+    expect(result).toBe('/path/#hash');
+  });
+
+  it('should redirect "#///" to /intro/', () => {
+    const result = getRedirectedPath('#///');
+    expect(result).toBe('/intro/');
+  });
 });