From ee95e5fded36410f88ec40e462790fa4b0ad4052 Mon Sep 17 00:00:00 2001
From: Harlan Wilton <harlan@harlanzw.com>
Date: Thu, 3 Dec 2020 23:42:28 +1100
Subject: [PATCH] hf(md): avoid normalising markdown "mailto:" links

The "mailto:" links were being normalised which resulted in them being linking to a broken URL and not working.
---
 src/node/markdown/plugins/link.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/node/markdown/plugins/link.ts b/src/node/markdown/plugins/link.ts
index 4028b4eb..1e0bcbbb 100644
--- a/src/node/markdown/plugins/link.ts
+++ b/src/node/markdown/plugins/link.ts
@@ -23,7 +23,12 @@ export const linkPlugin = (
         Object.entries(externalAttrs).forEach(([key, val]) => {
           token.attrSet(key, val)
         })
-      } else if (!url.startsWith('#')) {
+      } else if (
+        // internal anchor links
+        !url.startsWith('#') &&
+        // mail links
+        !url.startsWith('mailto:')
+      ) {
         normalizeHref(hrefAttr)
       }
     }