Here’s the situation. I have two WordPress installs. One in the root directory (/) and one in a language subdirectory (/fr/). They also share the same wp_tables, except wp_options (no need to comment on this practice, as I am aware that many people do not recommend it).
Now, I would like the /fr/ WP instance to fetch plugins from the default (root) instance. In other words, every time the /fr/ instance calls for wp-content/plugins, it should fetch its information in ../wp-contents/plugins.
Apache? Htaccess? What to do?
EDIT: my goal is to actually have both instances run on their own domain (and appear as a root folder on their respective domains), on a same server.
www.domain1.com (EN)
www.domain2.com (FR), which in fact is a subfolder (/fr/).