jquery/learn.jquery.com — pull request #572 by fiftyone (2014-11-12 18:18:13+00:00)
Title: Update key-concepts with XDomainRequest limitation

Added this update in order clarify the understanding implied in the sentence 'This limitation does not apply to scripts that are loaded via jQuery's Ajax methods'. This will help the beginner to understand $.ajax does not work seamlessly with every browser, but only with help of some plugins.