Error: No 'Access-Control-Allow-Origin' header is present on the requested resource.

在PHP接受請求後修改header，防止信息被瀏覽器擋著︰

<?php header('Access-Control-Allow-Origin: *'); ?>

Referense: Why does my JavaScript get a “No 'Access-Control-Allow-Origin' header is present on the requested resource” error when Postman does not?