Remove unneeded attribute extension-element-prefixes from xsl stylesheets

[tweeper.git] / src / rss_converter_twitter.com.xsl

diff --git a/src/rss_converter_twitter.com.xsl b/src/rss_converter_twitter.com.xsl
index 2cf1868..1d98fa2 100644 (file)
--- a/src/rss_converter_twitter.com.xsl
+++ b/src/rss_converter_twitter.com.xsl
@@ -21,7 +21,6 @@
 <xsl:stylesheet version="1.0"
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
     xmlns:php="http://php.net/xsl"
-    xsl:extension-element-prefixes="php"
     exclude-result-prefixes="php">
 
     <xsl:param name="generate-enclosure"/>
@@ -35,6 +34,11 @@
     <!-- Identity transform -->
     <xsl:template match="@*|node()">
         <xsl:copy>
+            <!--
+                Strip the style attribute while copying elements because it may be
+                dangerous, see:
+                https://validator.w3.org/feed/docs/warning/DangerousStyleAttr.html
+            -->
             <xsl:apply-templates select="@*[not(name() = 'style')]|node()"/>
         </xsl:copy>
     </xsl:template>