[wp-trac] [WordPress Trac] #56588: WordPress puts "loading=lazy" on first image on archive page - wp_get_loading_attr_default bug

[WordPress Trac]

#56588: WordPress puts "loading=lazy" on first image on archive page -
wp_get_loading_attr_default bug
--------------------------------------+--------------------------
 Reporter:  salvoaranzulla            |       Owner:  flixos90
     Type:  defect (bug)              |      Status:  assigned
 Priority:  high                      |   Milestone:  6.3
Component:  Media                     |     Version:  5.9
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  performance
--------------------------------------+--------------------------

Comment (by costdev):

 Thanks for the updated test instructions @flixos90!


 == Test Report

 Patch tested: https://patch-diff.githubusercontent.com/raw/WordPress
 /wordpress-develop/pull/4439.diff

 === Steps to Reproduce or Test
 1. Create a post with a featured image.
 2. Create another post with no featured image, but insert a Classic Block
 and add 3 images inside it.
 3. View the category page. You should only see the featured image.
 4. 🐞 Inspect the featured image.

 === Expected Results
 When reproducing a bug:
 - ❌ The featured image should have `loading="lazy"`.

 When testing a patch to validate it works as expected:
 - ✅ The featured image should not have `loading="lazy"`.

 === Environment
 - WordPress: 6.3-alpha-55505
 - PHP: 7.4.33
 - Server: Apache/2.4.56 (Ubuntu)
 - Database: mysqli (Server: 5.7.41-0ubuntu0.18.04.1 / Client: mysqlnd
 7.4.33)
 - Browser: Chrome 113.0.0.0 (Windows 10/11)
 - Theme: Twenty Nineteen, Twenty-Twenty One, Twenty-Twenty Two, Twenty-
 Twenty Three
 - MU-Plugins: None activated
 - Plugins: None activated

 ==== Actual Results
 When reproducing a bug/defect:
 - ❌ The featured image had `loading="lazy"`. Issue reproduced on all
 tested themes.

 When testing the bugfix patch:
 - ✅ The featured image did not have `loading="lazy"`. Issue resolved with
 the patch on all tested themes.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/56588#comment:22>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform