pre_option_upload_url_path filter no longer working

[QROkes]

“pre_option_upload_url_path” filter is not working since WP 4.7.

This is my use case that used to work like a charm before, it's pretty simple and seems like an issue in the wp_upload_dir() function in /wp-includes/functions.php file.

function cdn_url() {
  return 'http://cdn.domain/wp-content/uploads';
}
add_filter( 'pre_option_upload_url_path', 'cdn_url' );

[Nomafin]

Same problem here. I've tried to find out what causes the bug in the core but so far haven't found anything.

[donmhico]

This bug is kind of weird. I can't find pre_option_upload_url_path. I tried searching on

• full WP.org directory (using the latest trunk version 5.3-alpha-45282-src)
• ​https://codex.wordpress.org/Plugin_API/Filter_Reference
• ​https://adambrown.info/p/wp_hooks/hook
• ​http://hookr.io/all/

This might help though - ​https://gist.github.com/Fliktrax/dfcf7e2a0d2d263aeed9fe4fbd7d45a1

[QROkes]

Update: Now it's partially working''

For images, it only updates the 'srcset' but not the 'src'.