cors header ‘access control allow origin’ missing

Its a case of adding the following to your PHP scripts: app is not trying to prevent people from various orgs from using it. If you dont have access to configure Apache, you can still send the header from a PHP script.

However, it is the browser's job to protect this header. Pour autoriser n'importe quel site faire des requtes CORS sans utiliser le caractre gnrique (par exemple, pour fournir des authentifiants), votre serveur doit lire la valeur de l'en-tte Origin de la requte et l'utiliser dans Access-Control-Allow-Origin, tout en ajoutant un en-tte Vary: Origin pour indiquer que certains en-ttes sont dfinis dynamiquement selon leur origine.

Originally, I had < AllowedOrigin> set to.

htaccess file located in appropriate folder: you need to revalidate the cache of a page that has been statically generated, you can do so by setting the revalidate prop in the page's getStaticProps function. It is true that SERVER 'HTTPORIGIN is not 'secure' in the sense that your app has no way of verifying the true origin of the request. Here is a refference from Amazon about that.

You cannot set Cache-Control headers in for pages or assets, as these headers will be overwritten in production to ensure that responses and static assets are cached effectively. Cross-Origin Resource Sharing (CORS) errors occur when a server doesnt return the HTTP headers required by the CORS standard.

Cors header ‘access control allow origin’ missing