javascript - Why does No 'Access-Control-Allow-Origin' browser error have a status code? -

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xmlhttprequest cannot load <website>. no 'access-control-allow-origin' header present on requested resource. origin '<otherwebsite>' therefore not allowed access. response had http status code 401.

what i'm curious last line @ end. there's point in php code can change status code , changes number in output. if browser blocking request, how possible server side application code change happening being executed?


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