1 files changed, 41 insertions, 0 deletions
diff --git a/toolkit/mozapps/webextensions/content/updateinfo.xsl b/toolkit/mozapps/webextensions/content/updateinfo.xsl
new file mode 100644
index 000000000..5fcccd6d7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/updateinfo.xsl
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<xsl:stylesheet version="1.0" xmlns:xhtml="http://www.w3.org/1999/xhtml"
+                              xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+
+  <!-- Any elements not otherwise specified will be stripped but the contents
+       will be displayed. All attributes are stripped from copied elements. -->
+
+  <!-- Block these elements and their contents -->
+  <xsl:template match="xhtml:head|xhtml:script|xhtml:style">
+  </xsl:template>
+
+  <!-- Allowable styling elements -->
+  <xsl:template match="xhtml:b|xhtml:i|xhtml:em|xhtml:strong|xhtml:u|xhtml:q|xhtml:sub|xhtml:sup|xhtml:code">
+    <xsl:copy><xsl:apply-templates/></xsl:copy>
+  </xsl:template>
+
+  <!-- Allowable block formatting elements -->
+  <xsl:template match="xhtml:h1|xhtml:h2|xhtml:h3|xhtml:p|xhtml:div|xhtml:blockquote|xhtml:pre">
+    <xsl:copy><xsl:apply-templates/></xsl:copy>
+  </xsl:template>
+
+  <!-- Allowable list formatting elements -->
+  <xsl:template match="xhtml:ul|xhtml:ol|xhtml:li|xhtml:dl|xhtml:dt|xhtml:dd">
+    <xsl:copy><xsl:apply-templates/></xsl:copy>
+  </xsl:template>
+
+  <!-- These elements are copied and their contents dropped -->
+  <xsl:template match="xhtml:br|xhtml:hr">
+    <xsl:copy/>
+  </xsl:template>
+
+  <!-- The root document -->
+  <xsl:template match="/">
+    <xhtml:body><xsl:apply-templates/></xhtml:body>
+  </xsl:template>
+  
+</xsl:stylesheet>