Your site doesn’t include support for the Table of Contents

Hello,

I apologize for the inconvenience you are facing with the Table of Contents block in Rank Math SEO after upgrading to WordPress Version 6.5.

It seems like there might be an issue with the availability of the Table of Contents block by Rank Math in your existing posts and new ones. This issue could be related to the plugin version or compatibility.

To address this problem, please follow these steps:

1. For Existing Posts:

   • If you see the message “Your site doesn’t include support for the Table of Contents by Rank Math block,” you can try converting it to a Custom HTML block temporarily.
   • You can also try re-installing the Rank Math plugin to ensure that the Table of Contents block is available.

2. For New Pages:

   • If you are unable to find the Table of Contents block in the RANK MATH section of blocks for new pages, please try re-installing the Rank Math plugin to see if it resolves the issue.

If clicking on “Install Table of Contents by Rank Math” results in the removal of the entire Rank Math plugin, please avoid clicking on it and proceed with re-installing the plugin separately.

If the issue persists after re-installing the plugin, please let us know by replying to this ticket, and we will further investigate the matter to assist you effectively.

Thank you for bringing this to our attention, and we appreciate your patience as we work to resolve this issue for you.

Kind regards.

Sources:
How to Add Rank Math’s Table of Contents Block » Rank Math
Why Isn’t Rank Math Detecting the Table of Contents? » Rank Math
Score 100/100 With Rank Math Post Tests » Rank Math
How to Add Rank Math’s Table of Contents Block » Rank Math
How to Use a Table of Contents to Improve Content Readability » Rank Math

Hello,

We tested this on a default installation with WordPress 6.5 and the latest version of the Free plugin and the TOC block is working fine without any issues as you can see here: https://i.rankmath.com/v/VD9QLe

If your website doesn’t support the TOC block it could be because of an incompatible theme, plugin or custom code on the website.

Don’t hesitate to get in touch if you have any other questions.

Hello,

We were able to reproduce this issue on our setup and identified the source of the problem as originating from the Oxygen plugin. In the plugins/oxygen/component-framework/component-init.php file, the plugin has used the template_directory filter, which returns a fake value. Here is the code:

function ct_disable_theme_load( $stylesheet_dir ) {

	// disable theme entirely for now
	return "fake";

	if ( isset( $_GET["has_oxygen_template"] ) && $_GET["has_oxygen_template"] ) {
		return $stylesheet_dir;
	}

	if ( defined("HAS_OXYGEN_TEMPLATE") && HAS_OXYGEN_TEMPLATE ) {
		return "";
	}
	else {
		return $stylesheet_dir;
	}
}
// Need to remove for both parent and child themes
add_filter("template_directory", "ct_disable_theme_load", 1, 1);

Due to this code, the path of the block script registered using the editorScript property in the block.json file is being changed to http://rankmath.local/wp-content/themes/oxygen-is-not-a-theme/Local%20Sites/rankmath/app/public/wp-content/plugins/seo-by-rank-math/includes/modules/schema/blocks/toc/assets/js/index.js?ver=1.0.217-beta, resulting in a 404 error. You will also see this error in the browser’s console on your site.

An example of the editorScript property can be found here: https://github.com/rankmath/seo-by-rank-math/blob/master/includes/modules/schema/blocks/toc/block.json#L9-L10

I believe this issue is not specific to the Rank Math plugin and could potentially cause problems with all plugins that use block.json to register blocks.

Please forward this to the Oxygen Builder team so they can take a look at this issue. We will also try to get in touch with them.

Hope that helps.