I received the email below discussing the new options, but I don’t see any guide for how to implement them (the pull requests were not helpful). Is there a guide for how to use the subscription forms “across multiple websites.” Also, if I do this, I don’t understand how to use the ACCESS_CONTROL_ALLOW_ORIGINS.
The AJAX-based subscription forms are now able to function across multiple websites. A new config constant called ACCESS_CONTROL_ALLOW_ORIGINS has been added which is an array where you can put in your different origins you want to allow. Also, a new header “Vary: Origin” has been added to optimize cache control in the case where the array option is used.- thanks to Nepomuk Leutschacher for the implementation. Have a look at the Pull Request. Additionally, now with the AJAX request, you can specify a particular list instead of all lists being used. Thanks to Duncan Cameron for the implementation. Have a look at the Pull Request.