Don't decode %25 in beautified urls

fix https://github.com/markdown-it/markdown-it/issues/720

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

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 + '%');
 }
 
 

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:
 
 .