LH Multisite CORS
Allows AJAX requests from other sites in your multisite network even if they are on another domain or subdomain
Consider an alternative
LH Multisite CORS shows warning signs in 2026 — compare the alternatives below before installing. It runs on 300+ sites, is rated 3.7/5 and was last updated 4 years ago, and scores 29/100 on our health check.
- Small user base (300+ active installs)
- Very few reviews so far
- No update in 4 years
- Only tested up to WordPress 6.0 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where LH Multisite CORS stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| ajax | >100 |
| cors | #55 |
| rest | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 3.7 from 3 reviews
About LH Multisite CORS
From the official readme · v1.02Description
AJAX requests to this site from another (those containing an Origin header) will be allowed for any domain in your multisite setup, no configuration required
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Installation
This section describes how to install the plugin and get it working.
- Upload the entire
lh-multisite-corsfolder to the/wp-content/plugins/directory. - Activate the plugin through the ‘Plugins’ menu in WordPress.
Frequently asked questions
Why do I need this plugin?
If you want to integrate content from your site to JavaScript applications running on other domains then the CORS standard is a way to allow this. Allowing CORS for all sites is a security problem but given you are the super admin for sites on your own network they should be trustworthy, therefore CORS can be safely activated.
What is the difference between CORS and JSONP?
CORS is more modern and more secure since it works with the browser’s same-origin policy and XmlHttpRequest objects rather than bypassing them.
Ok I’m sold, where can I read more about CORS?
You can find the CORS spec here: http://www.w3.org/TR/cors/ You can learn more about how to use CORS here: https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS
What is something does not work?
LH Multisite CORS, and all https://lhero.org plugins are made to WordPress standards. Therefore they should work with all well coded plugins and themes. However not all plugins and themes are well coded (and this includes many popular ones). If something does not work properly, firstly deactivate ALL other plugins and switch to one of the themes that come with core, e.g. twentyfirteen, twentysixteen etc. If the problem persists please leave a post in the support forum: https://wordpress.org/support/plugin/lh-multisite-cors/. I look there regularly and resolve most queries.
What if I need a feature that is not in the plugin?
Please contact me for custom work and enhancements here: https://shawfactor.com/contact/
Changelog
1.00 April 12, 2016
Initial release.1.01 March 24, 2017
Fixed php strict errors1.02 July 27, 2017
Added class check
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best LH Multisite CORS alternatives
All ajax plugins →
FAQ
LH Multisite CORS: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 2, 2026
Is LH Multisite CORS free?
Yes. LH Multisite CORS is free to download and use from the official WordPress.org plugin directory.
Is LH Multisite CORS safe to use in 2026?
LH Multisite CORS shows warning signs in 2026 — compare the alternatives below before installing. It runs on 300+ sites, is rated 3.7/5 and was last updated 4 years ago, and scores 29/100 on our health check.
How many websites use LH Multisite CORS?
LH Multisite CORS is active on 300+ WordPress websites and has been downloaded 12,761 times since it launched in April 2016. It was downloaded 126 times in the last 30 days.
Does LH Multisite CORS work with WordPress 7.1?
LH Multisite CORS is officially tested up to WordPress 6.0.16, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was LH Multisite CORS last updated?
The latest version, 1.02, was released on July 30, 2022 (4 years ago).
Who makes LH Multisite CORS?
LH Multisite CORS is developed and maintained by shawfactor.
What are the best alternatives to LH Multisite CORS?
The most popular alternatives to LH Multisite CORS are zipaddr-jp (50K+ installs), SearchWP Live Ajax Search (50K+ installs) and WP-Polls (40K+ installs).
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