corner case - fixes #1363

2016-06-28 23:52:28 +02:00
parent 5f80300c5d
commit 9c8db3f65a
1 changed files with 1 additions and 1 deletions
@@ -129,7 +129,7 @@ class XssCleaner(HTMLParser):

    def handle_endtag(self, tag):
        bracketed = '</%s>' % tag
-        self.in_disallowed.pop()
+        self.in_disallowed and self.in_disallowed.pop()
        if tag not in self.permitted_tags:
            if (not self.strip_disallowed):
                self.result += xssescape(bracketed)