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-rw-r--r--actionpack/lib/action_dispatch/http/cache.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/http/cache.rb b/actionpack/lib/action_dispatch/http/cache.rb
index 842dfa5827..0f7898a3f8 100644
--- a/actionpack/lib/action_dispatch/http/cache.rb
+++ b/actionpack/lib/action_dispatch/http/cache.rb
@@ -82,7 +82,7 @@ module ActionDispatch
def etag=(etag)
key = ActiveSupport::Cache.expand_cache_key(etag)
- super %("#{Digest::MD5.hexdigest(key)}")
+ super %(W/"#{Digest::MD5.hexdigest(key)}")
end
def etag?; etag; end