Element API endpoint url for multisites?

[aaronrobb]

Description

I have a site with multiple "multisite" sites.
When using the Element-api endpoint it only creates it for the base url.
So if we have example.com and sub.example.com, element-api endpoint only gets created for example.com.
The issue is that we have cross-domain policy that won't let the basic example.com urls load on the sub.example.com.

Is there a way to set the endpoint to create/use the currentSite url?

Steps to reproduce

1. Create endpoints via the element-api.php file
2. Load sub-domain site and get errors about cross domain loading.

Additional info

• Craft version: 3.9.5
• PHP version: 7.4.33
• Database driver & version: MySQL 5.7.44
• Plugins & versions:

[brandonkelly]

Each Element API endpoint is available from all base site URLs.

The only thing to keep in mind is that Craft will respect the current requested site when fetching the elements by default. If you only want to fetch elements from the primary site, you will need to specify that using the site param in your criteria array.

'criteria' => [
    'site' => 'myPrimarySiteHandle',
    // ...
],