1 files changed, 12 insertions, 8 deletions
diff --git a/actionpack/lib/action_controller/metal/request_forgery_protection.rb b/actionpack/lib/action_controller/metal/request_forgery_protection.rb
index e9b173de99..ea637c8150 100644
--- a/actionpack/lib/action_controller/metal/request_forgery_protection.rb
+++ b/actionpack/lib/action_controller/metal/request_forgery_protection.rb
@@ -3,7 +3,6 @@
 require "rack/session/abstract/id"
 require "action_controller/metal/exceptions"
 require "active_support/security_utils"
-require "active_support/core_ext/string/strip"
 
 module ActionController #:nodoc:
   class InvalidAuthenticityToken < ActionControllerError #:nodoc:
@@ -62,7 +61,7 @@ module ActionController #:nodoc:
   # <tt>csrf_meta_tags</tt> in the HTML +head+.
   #
   # Learn more about CSRF attacks and securing your application in the
-  # {Ruby on Rails Security Guide}[http://guides.rubyonrails.org/security.html].
+  # {Ruby on Rails Security Guide}[https://guides.rubyonrails.org/security.html].
   module RequestForgeryProtection
     extend ActiveSupport::Concern
 
@@ -283,7 +282,7 @@ module ActionController #:nodoc:
 
       # Check for cross-origin JavaScript responses.
       def non_xhr_javascript_response? # :doc:
-        content_type =~ %r(\Atext/javascript) && !request.xhr?
+        content_type =~ %r(\A(?:text|application)/javascript) && !request.xhr?
       end
 
       AUTHENTICITY_TOKEN_LENGTH = 32
@@ -408,9 +407,14 @@ module ActionController #:nodoc:
       end
 
       def xor_byte_strings(s1, s2) # :doc:
-        s2_bytes = s2.bytes
-        s1.each_byte.with_index { |c1, i| s2_bytes[i] ^= c1 }
-        s2_bytes.pack("C*")
+        s2 = s2.dup
+        size = s1.bytesize
+        i = 0
+        while i < size
+          s2.setbyte(i, s1.getbyte(i) ^ s2.getbyte(i))
+          i += 1
+        end
+        s2
       end
 
       # The form's authenticity parameter. Override to provide your own.
@@ -423,9 +427,9 @@ module ActionController #:nodoc:
         allow_forgery_protection
       end
 
-      NULL_ORIGIN_MESSAGE = <<-MSG.strip_heredoc
+      NULL_ORIGIN_MESSAGE = <<~MSG
         The browser returned a 'null' origin for a request with origin-based forgery protection turned on. This usually
-        means you have the 'no-referrer' Referrer-Policy header enabled, or that you the request came from a site that
+        means you have the 'no-referrer' Referrer-Policy header enabled, or that the request came from a site that
         refused to give its origin. This makes it impossible for Rails to verify the source of the requests. Likely the
         best solution is to change your referrer policy to something less strict like same-origin or strict-same-origin.
         If you cannot change the referrer policy, you can disable origin checking with the