jquery - Unable to load a text through a local host -

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question: why error suggests "different-origin" material, , how fix it? i'm trying recreate this simple example (click on "try yourself") on machine using python's simplehttpserver. i've created demo_test.txt (with same contents example). demo_test.txt , jquery-2.1.4.min.js both in root directory server started. code runs fine until tries access demo_test.txt, @ point gives error:

xmlhttprequest cannot load file:///users/username/project/demo_test.txt. cross origin requests supported protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource.

if instead try load them urls (commented out lines) different error:

no 'access-control-allow-origin' header present on requested resource.

i understand bit same-origin policy, must somehow violating it. can me out?

<!doctype html> <html> <head> <script src="jquery-2.1.4.min.js"></script> <!-- <script src="http://127.0.0.1:8000/jquery-2.1.4.min.js"></script> -->  <script> $(document).ready(function(){     $("button").click(function(){         $("#div1").load("demo_test.txt");         // $("#div1").load("http://127.0.0.1:8000/demo_test.txt");     }); }); </script> </head> <body>  <div id="div1"><h2>let jquery ajax change text</h2></div>  <button>get external content</button>  </body> </html>


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