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-rw-r--r--actionpack/lib/action_view/template/template.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/template/template.rb b/actionpack/lib/action_view/template/template.rb
index b6967a2013..e541336613 100644
--- a/actionpack/lib/action_view/template/template.rb
+++ b/actionpack/lib/action_view/template/template.rb
@@ -101,7 +101,7 @@ module ActionView #:nodoc:
end
def content_type
- format.gsub('.', '/')
+ format && format.gsub('.', '/')
end
private