tstephenson

My use case is to allow content authors to write help pages in WordPress. 
This content is fetched and embedded into a single page application hosted on another domain.
AJAX requests to this site from another are typically disallowed by the browser’s security model. 
To permit legitimate uses the requesting browser may include an Origin header containing its domain. 
This plugin uses the Origin header to decide whether to allow the request or not. 
Allowed domains can be specified in the plugin’s Settings page.

WP-CORS

Allows AJAX requests from other sites to integrate content from your site using the CORS standard.

No Frills Plugins

RSS CORS Enable is a simple yet powerful plugin designed to solve the common problem of accessing WordPress RSS feeds from different origins. By default, accessing WordPress RSS feeds via JavaScript from a domain different than the one where WordPress is hosted can result in Cross-Origin Resource Sharing (CORS) errors. This plugin addresses this issue by adding an <code>Access-Control-Allow-Origin: *</code> header to your WordPress RSS feed, making it accessible from any origin.

RSS CORS Enable

This plugin adds the necessary CORS (Cross-Origin Resource Sharing) header to your WordPress RSS feed, allowing it to be accessed from any origin.

WP-CORS vs RSS CORS Enable