Don’t remove DOCTYPE in typogrify filters

Signed-off-by: Chris Warrick <kwpolska@gmail.com>
getnikola · Jul 26, 2016 · aabf52e · aabf52e
1 parent 1b1b117
commit aabf52e
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diff --git a/CHANGES.txt b/CHANGES.txt
@@ -9,6 +9,7 @@ Features
 Bugfixes
 --------
 
+* Don’t remove ``<!DOCTYPE html>`` if typogrify filters are in use
 * Avoid infinite loop if bootstrap3 can't be loaded (Issue #2402)
 
 New in v7.7.11

diff --git a/nikola/filters.py b/nikola/filters.py
@@ -336,7 +336,7 @@ def _normalize_html(data):
         data = lxml.html.tostring(lxml.html.fromstring(data), encoding='unicode')
     except:
         pass
-    return data
+    return '<!DOCTYPE html>\n' + data
 
 
 normalize_html = apply_to_text_file(_normalize_html)