From f156ed1bffec0e02b2353abf248c5b10c6101524 Mon Sep 17 00:00:00 2001
From: Alex Kocharin <alex@kocharin.ru>
Date: Wed, 14 Oct 2020 16:18:17 +0300
Subject: [PATCH] Don't decode %25 in beautified urls

fix https://github.com/markdown-it/markdown-it/issues/720
---
 CHANGELOG.md                            | 1 +
 lib/index.js                            | 3 ++-
 test/fixtures/markdown-it/normalize.txt | 9 +++++++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ab4ca7b2..faaa32d16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - Fix mappings for table rows (amended fix made in 11.0.1), #705.
+- `%25` is no longer decoded in beautified urls, #720.
 
 
 ## [11.0.1] - 2020-09-14
diff --git a/lib/index.js b/lib/index.js
index 7ef807c76..69d3daf5d 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -81,7 +81,8 @@ function normalizeLinkText(url) {
     }
   }
 
-  return mdurl.decode(mdurl.format(parsed));
+  // add '%' to exclude list because of https://github.com/markdown-it/markdown-it/issues/720
+  return mdurl.decode(mdurl.format(parsed), mdurl.decode.defaultChars + '%');
 }
 
 
diff --git a/test/fixtures/markdown-it/normalize.txt b/test/fixtures/markdown-it/normalize.txt
index 14fa2a938..6faed59b3 100644
--- a/test/fixtures/markdown-it/normalize.txt
+++ b/test/fixtures/markdown-it/normalize.txt
@@ -13,6 +13,15 @@ Encode link destination, decode text inside it:
 <p><a href="http://example.com/%CE%B1%CE%B2%CE%B3%CE%B4">foo</a></p>
 .
 
+
+Keep %25 as is because decoding it may break urls, #720
+.
+<https://www.google.com/search?q=hello%2E%252Ehello>
+.
+<p><a href="https://www.google.com/search?q=hello%2E%252Ehello">https://www.google.com/search?q=hello.%252Ehello</a></p>
+.
+
+
 Should decode punycode:
 
 .