1 files changed, 2 insertions, 8 deletions
diff --git a/activesupport/lib/active_support/core_ext/blank.rb b/activesupport/lib/active_support/core_ext/blank.rb
index d2a940f5b9..c4695816e2 100644
--- a/activesupport/lib/active_support/core_ext/blank.rb
+++ b/activesupport/lib/active_support/core_ext/blank.rb
@@ -7,13 +7,7 @@ class Object
   # to
   #   if !address.blank?
   def blank?
-    if respond_to?(:empty?) && respond_to?(:strip)
-      empty? or strip.empty?
-    elsif respond_to?(:empty?)
-      empty?
-    else
-      !self
-    end
+    respond_to?(:empty?) ? empty? : !self
   end
 end
 
@@ -45,7 +39,7 @@ end
 
 class String #:nodoc:
   def blank?
-    empty? || strip.empty?
+    self !~ /\S/
   end
 end