What is WordPress Hook: allowed_http_origins
The allowed_http_origins hook in WordPress is used to specify the allowed HTTP origins for cross-origin resource sharing (CORS) requests. This hook is commonly used to control which origins are allowed to access resources on a web server.
Understanding the Hook: allowed_http_origins
The allowed_http_origins hook is located within the WordPress process where it handles incoming HTTP requests. It is typically used in conjunction with the REST API to control access to resources from different origins.
Hook Parameters (if applicable): allowed_http_origins
The allowed_http_origins hook accepts a single parameter, which is an array of allowed origins. Each origin specified in the array is granted access to the resources on the server.
Hook Doesn’t Work: allowed_http_origins
If the allowed_http_origins hook doesn’t work as expected, it may be due to incorrect configuration of the allowed origins array. It’s important to ensure that the correct syntax is used and that the origins are specified accurately. Additionally, it’s important to check for any conflicts with other CORS settings or plugins that may be overriding the allowed_http_origins hook.
Best Practices & Usage Notes (if applicable): allowed_http_origins
When using the allowed_http_origins hook, it’s important to carefully consider which origins are allowed to access resources on the server. Allowing too many origins can pose security risks, so it’s best to restrict access to only trusted origins. Additionally, it’s important to keep the allowed origins list up to date and regularly review it for any changes.
Usage Example: allowed_http_origins
“`php
function custom_allowed_http_origins( $origins ) {
$origins[] = ‘https://example.com’;
$origins[] = ‘https://subdomain.example.com’;
return $origins;
}
add_filter( ‘allowed_http_origins’, ‘custom_allowed_http_origins’ );
“`
In this example, the custom_allowed_http_origins function adds two origins to the allowed_http_origins array, allowing requests from ‘https://example.com’ and ‘https://subdomain.example.com’.