fix(blog): make RSS feed discoverable site-wide

.gitignore

@@ -7,7 +7,14 @@ package
 .vscode
 .env.local
 .env.*.local
-*.pem 
+
+# Playwright
+/test-results
+/playwright-report
+/blob-report
+/playwright/.cache
+
+*.pem
 *.pub
 *.sec
 

.prettierignore

@@ -7,6 +7,8 @@ build/
 .svelte-kit/
 dist/
 node_modules/
+test-results/
+playwright-report/
 
 # Lockfiles
 package-lock.json

src/routes/(marketing)/+layout.svelte

@@ -19,6 +19,17 @@
     })
 </script>
 
+<svelte:head>
+    <!-- Site-wide RSS autodiscovery so feed readers pointed at any marketing
+         page (including the root domain) find the blog feed. -->
+    <link
+        rel="alternate"
+        type="application/rss+xml"
+        title="PostGuard Blog RSS Feed"
+        href="/blog/rss.xml"
+    />
+</svelte:head>
+
 {#if !$isLoading}
     <a class="sr-only sr-only-focusable skip-link" href="#main-content">
         {$_('common.skipToMain', { default: 'Skip to main content' })}

src/routes/(marketing)/blog/+page.svelte

@@ -54,15 +54,6 @@
     jsonLd={blogJsonLd}
 />
 
-<svelte:head>
-    <link
-        rel="alternate"
-        type="application/rss+xml"
-        title="PostGuard Blog RSS Feed"
-        href="/blog/rss.xml"
-    />
-</svelte:head>
-
 <div class="blog-index">
     <div class="header">
         <h1>Blog</h1>

src/routes/(marketing)/blog/[slug]/+page.svelte

@@ -64,15 +64,6 @@
     jsonLd={articleJsonLd}
 />
 
-<svelte:head>
-    <link
-        rel="alternate"
-        type="application/rss+xml"
-        title="PostGuard Blog RSS Feed"
-        href="/blog/rss.xml"
-    />
-</svelte:head>
-
 <article class="blog-post">
     <header>
         <div class="meta">

tests/rss-autodiscovery.test.ts

@@ -0,0 +1,30 @@
+import { expect, test } from '@playwright/test'
+
+const RSS_LINK =
+    'head > link[rel="alternate"][type="application/rss+xml"][href="/blog/rss.xml"]'
+
+// Regression test for the site-wide RSS autodiscovery link (issue
+// encryption4all/postguard-business#58). The autodiscovery <link> lives in the
+// marketing layout head, so every public page must advertise the blog feed
+// exactly once — including non-blog pages and blog pages, which must not carry
+// a leftover per-page duplicate.
+for (const path of ['/', '/about/', '/blog/']) {
+    test(`RSS autodiscovery link is present exactly once on ${path}`, async ({
+        page,
+    }) => {
+        await page.goto(path)
+        await expect(page.locator(RSS_LINK)).toHaveCount(1)
+    })
+}
+
+test('RSS autodiscovery link is present exactly once on a blog post page', async ({
+    page,
+}) => {
+    await page.goto('/blog/')
+    const firstPost = page.locator('a.post-card').first()
+    const href = await firstPost.getAttribute('href')
+    expect(href, 'expected at least one blog post link on /blog/').toBeTruthy()
+
+    await page.goto(href as string)
+    await expect(page.locator(RSS_LINK)).toHaveCount(1)
+})