How to use meta tag to declare http Access-Control-Allow-Origin

Question

Access-Control-Allow-Origin is typically declared as an HTTP header to enable a browser to fetch content from remote domains. Is it possible for this to be declared via the HTML <meta> tag?

Answer 1

No. Only real HTTP headers can be used for this.

Answer 2

In .html files

In .php files header('Access-Control-Allow-Origin: *');

Answer 3

Try this:

Client Side

<meta http-equiv="Access-Control-Allow-Origin" content="*" />

Server Side

Remember that you must include the corresponding header.

PHP Example:

header('Access-Control-Allow-Origin: *'); 

You MUST have the HTML tag AND the Server Header.