From e8de7726c53c27095526be30dcbe2aef65676803 Mon Sep 17 00:00:00 2001
From: Dmitry <dmitry.b.danilov@gmail.com>
Date: Fri, 27 Nov 2020 21:58:24 +0200
Subject: [PATCH] fix(#744): Escape special characters in title (#745)

---
 CHANGELOG.md        |  1 +
 _includes/head.html | 10 +++++-----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5eb2427..26d013f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 - Fixed bug where using an image as a navbar title did not render in GitHub Project pages that did not have a custom domain
 - Fixed issue where image thumbnails on the feed page were always forced into a square rather than maintaining a proper image aspect ratio
 - Added support for Patreon in the social network links in the footer
+- Fixed bug where special characters in the title led to broken share tags (#744)
 
 ## v5.0.0 (2020-09-15)
 
diff --git a/_includes/head.html b/_includes/head.html
index 9d43c46..730e967 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -4,19 +4,19 @@
 
   {% capture title %}
     {%- if page.share-title -%}
-      {{ page.share-title }}
+      {{ page.share-title | strip_html | xml_escape }}
     {%- elsif page.title -%}
-      {{ page.title }}
+      {{ page.title | strip_html | xml_escape  }}
     {%- else -%}
-      {{ site.title }}
+      {{ site.title | strip_html | xml_escape }}
     {%- endif -%}
   {% endcapture %}
 
   {% capture description %}
     {%- if page.share-description -%}
-      {{ page.share-description }}
+      {{ page.share-description | strip_html | xml_escape }}
     {%- elsif page.subtitle -%}
-      {{ page.subtitle }}
+      {{ page.subtitle | strip_html | xml_escape }}
     {%- else -%}
       {%- assign excerpt_length = site.excerpt_length | default: 50 -%}
       {{ page.content | strip_html | xml_escape | truncatewords: excerpt_length | strip }}