Remove unnecessary conditional in rack/static.rb

Mime.mime_type always returns a value.  The only way it wouldn't
is if MIME_TYPES was modified to have an entry with a nil/false
value, which would seem to violate the expectations of
Mime.mime_type, which is documented to return a string if the
mime type is found.

1 files changed, 1 insertions, 3 deletions

diff --git a/lib/rack/static.rb b/lib/rack/static.rb
index f981397b..5c9b6760 100644
--- a/lib/rack/static.rb
+++ b/lib/rack/static.rb
@@ -139,9 +139,7 @@ module Rack
           elsif response[0] == 304
             # Do nothing, leave headers as is
           else
-            if mime_type = Mime.mime_type(::File.extname(path), 'text/plain')
-              response[1][CONTENT_TYPE] = mime_type
-            end
+            response[1][CONTENT_TYPE] = Mime.mime_type(::File.extname(path), 'text/plain')
             response[1]['content-encoding'] = 'gzip'
           end
         end