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-rw-r--r--actionpack/lib/action_controller/cgi_process.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/cgi_process.rb b/actionpack/lib/action_controller/cgi_process.rb
index e69a0b2f8d..8610f60854 100644
--- a/actionpack/lib/action_controller/cgi_process.rb
+++ b/actionpack/lib/action_controller/cgi_process.rb
@@ -105,6 +105,7 @@ module ActionController #:nodoc:
def out
convert_content_type!(@headers)
$stdout.binmode if $stdout.respond_to?(:binmode)
+ $stdout.sync = false
print @cgi.header(@headers)
if @body.respond_to?(:call)
@body.call(self)