11CONSOLE WARNING: line 24: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
2CONSOLE ERROR: line 1: Failed to load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%2Fxmlhttprequest%2Fresources%2Forigin-exact-matching-iframe.html%3F45: The 'Access-Control-Allow-Origin' header has a value 'http://localhost:8000/xmlhttprequest/resources/origin-exact-matching-iframe.html?45' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
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