tee_input: avoid ignoring initial body blob

This was causing the first part of the body to be missing when
an HTTP client failed to delay between sending the header and
body in the request.

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/unicorn/tee_input.rb b/lib/unicorn/tee_input.rb
index 3d19d7e..8dd8954 100644
--- a/lib/unicorn/tee_input.rb
+++ b/lib/unicorn/tee_input.rb
@@ -21,7 +21,10 @@ module Unicorn
       @tmp.binmode
       @tmp.sync = true
 
-      @tmp.write(body) if body
+      if body
+        @tmp.write(body)
+        @tmp.seek(0)
+      end
       @input = input
       @size = size # nil if chunked
     end