WordPress (behind HAProxy and Jetty), not multisite, in sub folder – and /en/wp-admin/ keeps redirecting to /wp-admin/

Do you happen to have PHPMyAdmin or Adminer or a similar tool installed in your web server? You could easily run a search & replace. I’d recommend running a search and see if all the matching records make sense. Then, run a search & replace. As @WebElaine mentioned, WP tends to store the URLs in … Read more

Error uploading files bigger than 58 MB

Some ideas: You should check your php info, just to verify your upload settings (<?php phpinfo();?>) You could try a single install, to see if you have the same problems as with multisite. You should also try some 3rd party upload script yourself. In /wp-includes/script-loader.php I found these lines: // common bits for both uploaders … Read more

Is it possible to override the ABSPATH constant

The official reply is that ABSPATH is more for backward compatibility with code which was written when plugins were including wp-config.php and overriding WP_CONTENT_DIR should be enough. https://core.trac.wordpress.org/ticket/29626#comment:3 https://core.trac.wordpress.org/ticket/26592#comment:8