[wp-trac] [WordPress Trac] #64554: New src_matched value filter request

[WordPress Trac]

#64554: New src_matched value filter request
-------------------------+-----------------------------
 Reporter:  rahu1        |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Media        |    Version:  6.9
 Severity:  blocker      |   Keywords:  needs-patch
  Focuses:               |
-------------------------+-----------------------------
 Hi,

 I am uploading media to Amazon S3 and serving media URLs directly from S3.
 All media URLs are successfully replaced and served from S3 without
 issues.

 However, when I enable object versioning in S3, WordPress fails to
 generate srcset. Specifically, the URL becomes something like:

 https://.../any/uploads/2026/01/8728723/a.jpg

 This happens because wp_calculate_image_srcset() receives the S3 URL as
 $image_src, since the URL is already replaced via a the_content filter.
 Due to this, the internal src_matched check fails, and the function simply
 returns false.

 As a result, no srcset is generated.

 I need a filter or hook inside wp_calculate_image_srcset() to detect
 whether the provided image URL is an S3 URL. If it is, I need a way to
 force the src_matched check to return true.

 I have already tested this by modifying wp_calculate_image_srcset()
 directly, and it successfully generates image sizes using the S3 URLs.
 However, modifying core is not a viable solution, so I am looking for a
 proper filter-based approach.

 Any guidance or suggestions would be appreciated.

 Thank you.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/64554>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform