wp_die() handler for admin-post.php

[danielbachhuber]

Similar to how admin-ajax.php has _ajax_wp_die_handler, it would be nice if admin-post.phphad a custom wp_die() handler for errors.

[nacin]

This was done specifically so our AJAX methods would become testable. What would be the benefit to admin-post.php? Same?

[danielbachhuber]

For me, use wp_die() as an error handler with admin-post.

[paulschreiber]

I looked in admin-ajax.php but couldn't find any handlers. The only place I found _ajax_wp_die_handler was in class-wp-customize-manager.php.

[prasoon2211]

I was taking a look at this ticket and found out that the _ajax_wp_die_handler has moved to wp-includes/functions.php.

[foack]

Following the basic tutorial on ​https://codex.wordpress.org/Plugin_API/Action_Reference/admin_post_(action) and replacing the die() in the example with wp_die(), the wp_die() function triggers _ajax_wp_die_handler located in wp-includes/functions.php.

I'm new in contributing to WP Core but from my perspective, it would not be necessary to extend admin_post.php. If we were to, we'd at least need to avoid redeclaring _ajax_wp_die_handler().