Fix Markdown rendering for sidebar sections with href

src/project/types/website/website-navigation-md.ts

@@ -301,7 +301,10 @@ const sidebarContentsHandler = (context: NavigationPipelineContext) => {
       );
       for (let i = 0; i < sidebarSectionEls.length; i++) {
         const sectionEl = sidebarSectionEls[i] as Element;
-        const target = sectionEl.getAttribute("data-bs-target");
+        // The toggle has data-bs-target whether or not the section has an href
+        const target = sectionEl.parentElement
+          ?.querySelector(".sidebar-item-toggle")
+          ?.getAttribute("data-bs-target");
 
         if (target) {
           const id = target.slice(1);

tests/docs/websites/website-sidebar-section-href/.gitignore

@@ -0,0 +1,3 @@
+/.quarto/
+
+**/*.quarto_ipynb

tests/docs/websites/website-sidebar-section-href/_quarto.yml

@@ -0,0 +1,12 @@
+project:
+  type: website
+
+website:
+  title: "Sidebar section href test"
+  sidebar:
+    contents:
+      - index.qmd
+      - section: "**More info**"
+        href: more-info.qmd
+        contents:
+          - child.qmd

tests/docs/websites/website-sidebar-section-href/child.qmd

@@ -0,0 +1,5 @@
+---
+title: "Child page"
+---
+
+Child page.

tests/docs/websites/website-sidebar-section-href/index.qmd

@@ -0,0 +1,5 @@
+---
+title: "Home"
+---
+
+Home page.

tests/docs/websites/website-sidebar-section-href/more-info.qmd

@@ -0,0 +1,5 @@
+---
+title: "More info"
+---
+
+More info page.

tests/smoke/website/website-sidebar-section-href.test.ts

@@ -0,0 +1,36 @@
+/*
+ * website-sidebar-section-href.test.ts
+ *
+ * Tests that markdown in sidebar section titles is rendered correctly when
+ * the section has an href. Without the fix, the .sidebar-item-text element
+ * is a plain link without data-bs-target, so the markdown substitution in
+ * sidebarContentsHandler() fails to recover the sectionId and leaves raw
+ * markdown (e.g. **More info**) in the DOM instead of rendering it.
+ *
+ * Copyright (C) 2026 Posit Software, PBC
+ */
+
+import { docs } from "../../utils.ts";
+import { join } from "../../../src/deno_ral/path.ts";
+import { safeRemoveSync } from "../../../src/deno_ral/fs.ts";
+import { testQuartoCmd } from "../../test.ts";
+import { ensureHtmlElements, noErrorsOrWarnings } from "../../verify.ts";
+
+const renderDir = docs("websites/website-sidebar-section-href");
+const outDir = join(renderDir, "_site");
+
+testQuartoCmd(
+  "render",
+  [renderDir],
+  [
+    noErrorsOrWarnings,
+    // Markdown in section title must be rendered: **More info** → <strong>
+    ensureHtmlElements(
+      join(outDir, "index.html"),
+      [".sidebar-item-text strong"],
+    ),
+  ],
+  {
+    teardown: async () => safeRemoveSync(outDir, { recursive: true }),
+  },
+);