diff --git a/packages/@vuepress/shared-utils/__tests__/parseHeaders.spec.ts b/packages/@vuepress/shared-utils/__tests__/parseHeaders.spec.ts
index 60ffc7afc0..aaa487a215 100644
--- a/packages/@vuepress/shared-utils/__tests__/parseHeaders.spec.ts
+++ b/packages/@vuepress/shared-utils/__tests__/parseHeaders.spec.ts
@@ -19,6 +19,10 @@ describe('parseHeaders', () => {
       '\\*vue\\*': '*vue*',
       '\\!vue\\!': '!vue!',
 
+      // #2688
+      '[vue](vuejs.org) / [vue](vuejs.org)': 'vue / vue',
+      '[\\<ins>](vuejs.org)': '<ins>',
+
       // #564 For multiple markdown tokens
       '`a` and `b`': 'a and b',
       '***bold and italic***': 'bold and italic',
diff --git a/packages/@vuepress/shared-utils/__tests__/removeNonCodeWrappedHTML.spec.ts b/packages/@vuepress/shared-utils/__tests__/removeNonCodeWrappedHTML.spec.ts
index cfa2594a92..cd80803d3e 100644
--- a/packages/@vuepress/shared-utils/__tests__/removeNonCodeWrappedHTML.spec.ts
+++ b/packages/@vuepress/shared-utils/__tests__/removeNonCodeWrappedHTML.spec.ts
@@ -44,7 +44,10 @@ test('removeNonCodeWrappedHTML', () => {
     '# H1 `<Comp></Comp>` H2': '# H1 `<Comp></Comp>` H2',
     '# H1 `<Comp a="b"></Comp>` H2': '# H1 `<Comp a="b"></Comp>` H2',
     '# H1 `<Comp/>` H2': '# H1 `<Comp/>` H2',
-    '# H1 `<Comp a="b"/>` H2': '# H1 `<Comp a="b"/>` H2'
+    '# H1 `<Comp a="b"/>` H2': '# H1 `<Comp a="b"/>` H2',
+
+    // #2688
+    '# \\<ins>': '# \\<ins>'
   }
 
   Object.keys(asserts).forEach(input => {