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-rw-r--r--actionpack/lib/action_dispatch/http/request.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb
index 4d4b443fb4..01f117be99 100644
--- a/actionpack/lib/action_dispatch/http/request.rb
+++ b/actionpack/lib/action_dispatch/http/request.rb
@@ -209,8 +209,8 @@ module ActionDispatch
end
# Returns true if the "X-Requested-With" header contains "XMLHttpRequest"
- # (case-insensitive). All major JavaScript libraries send this header with
- # every Ajax request.
+ # (case-insensitive), which may need to be manually added depending on the
+ # choice of JavaScript libraries and frameworks.
def xml_http_request?
@env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/i
end