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-rw-r--r--public/js/render.js1
-rwxr-xr-x[-rw-r--r--]public/js/reveal-markdown.js5
2 files changed, 5 insertions, 1 deletions
diff --git a/public/js/render.js b/public/js/render.js
index 559530b0..a61fc8fb 100644
--- a/public/js/render.js
+++ b/public/js/render.js
@@ -1,5 +1,6 @@
// allow some attributes
var whiteListAttr = ['id', 'class', 'style'];
+window.whiteListAttr = whiteListAttr;
// allow link starts with '.', '/' and custom protocol with '://'
var linkRegex = /^([\w|-]+:\/\/)|^([\.|\/])+/;
// allow data uri, from https://gist.github.com/bgrins/6194623
diff --git a/public/js/reveal-markdown.js b/public/js/reveal-markdown.js
index ca22e09c..3c3e1f5b 100644..100755
--- a/public/js/reveal-markdown.js
+++ b/public/js/reveal-markdown.js
@@ -286,7 +286,10 @@
nodeValue = nodeValue.substring( 0, matches.index ) + nodeValue.substring( mardownClassesInElementsRegex.lastIndex );
node.nodeValue = nodeValue;
while( matchesClass = mardownClassRegex.exec( classes ) ) {
- elementTarget.setAttribute( matchesClass[1], matchesClass[2] );
+ var name = matchesClass[1];
+ var value = matchesClass[2];
+ if (name.substr(0, 5) === 'data-' || whiteListAttr.indexOf(name) !== -1)
+ elementTarget.setAttribute( name, filterXSS.escapeAttrValue(value) );
}
return true;
}