[wp-trac] [WordPress Trac] #50425: Do not lazy-load images which are very likely to be in the initial viewport

[WordPress Trac]

#50425: Do not lazy-load images which are very likely to be in the initial viewport
-------------------------+------------------------------------------
 Reporter:  flixos90     |      Owner:  flixos90
     Type:  enhancement  |     Status:  assigned
 Priority:  normal       |  Milestone:  5.5
Component:  Media        |    Version:
 Severity:  normal       |   Keywords:  needs-patch needs-unit-tests
  Focuses:               |
-------------------------+------------------------------------------
 Currently, `loading="lazy"` is added to the following images by default:
 * images in post content (context `the_content`)
 * images in post excerpt (context `the_excerpt`)
 * images in widget content (context `widget_text_content`)
 * avatar images (context `get_avatar`)
 * any image rendered via `wp_get_attachment_image()` (context
 `wp_get_attachment_image`)

 While these defaults can be modified per context via the
 `wp_lazy_loading_enabled` filter, there are certain images in WordPress
 which preferably would not be lazy-loaded since they are very likely to be
 in the initial viewport. This ticket aims at modifying those images to use
 `loading="eager"` by default instead.

 The following functions should pass `loading="eager"` to
 `wp_get_attachment_image()`:
 * `get_custom_logo()`
 * `get_the_post_thumbnail()`

 Another function to cover would be `get_header_image_tag()`, however that
 does not use `wp_get_attachment_image()`, so no need to update.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/50425>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform