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CoreBoost v3.3.7

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@github-actions github-actions released this 12 May 19:07
· 3 commits to main since this release
v3.3.7
204ab21

🐛 Fixed - LCP Preload Not Firing When preload_method Is Not video_hero

Root Cause

preload_video_hero() — which reads _elementor_data from the database and emits a
<link rel="preload" fetchpriority="high"> at wp_head priority 1 — was only called when
preload_method was explicitly set to video_hero or video_fallback. Sites using any
other preload method (e.g. automatic, css_class) received no <head> preload for the
video fallback image, causing the LCP resource load delay to remain.

Additionally, inject_lcp_foreground_image() Levels 1–3 could all miss when Elementor
applies the fallback background as an inline style via JavaScript (client-side) rather than
server-side PHP — so no URL was ever found and cb-lcp-img was not injected.

Changes

  • preload_hero_images() (Hero_Optimizer): after the normal preload_method dispatch,
    always calls preload_video_hero() when enable_lcp_foreground_injection is on. This
    implements Method A from the Manus AI research: an unconditional wp_head priority-1 preload
    tied to the enable_lcp_foreground_injection feature flag. output_preload_tag() deduplication
    prevents a double tag if video_hero is also the active preload_method.
  • inject_lcp_foreground_image() — Level 4 added (Resource_Remover): when Levels 1–3 all
    fail, reads _elementor_data post meta directly and scans the first 5 top-level Elementor
    elements for background_video_fallback.url (then background_image.url). This is the same
    database-level lookup used by preload_video_hero() and is immune to whether Elementor applies
    the inline style via PHP or JS. Result cached in closure scope — DB query runs at most once
    per page even when multiple cb-lcp elements are present.

Files Modified

  • includes/public/class-hero-optimizer.php — preload_hero_images() secondary dispatch
  • includes/public/class-resource-remover.php — inject_lcp_foreground_image() Level 4
Assets 3
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