In one of my project I use a Wordpress REST Api. When I was enabled cache by WP Super Cache plugin I have an error now:

XMLHttpRequest cannot load Origin is not allowed by Access-Control-Allow-Origin.

How can I fix it?

I found a .htaccess solution, but I will be happy if anyone know a working PHP solution.

It's my .htaccess with multiple domain access support and access for only GET request:

# CORS Headers
<ifModule mod_headers.c>
    SetEnvIf Origin "^http(s)?://(.+\.)?(localhost:8080|example\.com|example\.net)$" origin_is=$0 
    Header always set Access-Control-Allow-Origin %{origin_is}e env=origin_is
    Header always set Access-Control-Allow-Methods "GET"
    Header always set Access-Control-Allow-Headers "X-Requested-With, content-type"

# BEGIN WordPress
... # default WP rules
# END WordPress

RewriteRule ^(.*)$ $1 [R=200,L]

If you want to use only one domain, you can remove the line starts with "SetEnvIf...", and in the next put:

Header always set Access-Control-Allow-Origin: ""

If you want to use also other request, you can separated it by a comma:

Header always set Access-Control-Allow-Methods "GET, POST, PUT, DELETE"

Your Answer


By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.