[wp-trac] [WordPress Trac] #64866: Website Unstable Please assist me

[WordPress Trac]

#64866: Website Unstable Please assist me
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 Reporter:  rockarollaman2018  |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  General            |     Version:  6.9.4
 Severity:  normal             |  Resolution:
 Keywords:                     |     Focuses:
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Comment (by darshitrajyaguru97):

 Hi @rockarollaman2018,

 I reviewed the website behavior and the console logs. The issues you're
 experiencing are most likely related to caching and optimization conflicts
 on the site. Below are the key points that explain what is affecting the
 website:

 **Main Issues Observed**

 • **Intermittent website slowness and timeouts** – This is usually caused
 by aggressive caching or optimization settings that delay scripts or
 resources from loading properly.

 • **Images sometimes missing and then appearing later** – This typically
 happens when **lazy loading is triggered incorrectly**, causing images to
 load only after scrolling or interaction.

 • **Console errors related to asynchronous listeners** – The error
 `A listener indicated an asynchronous response by returning true, but the
 message channel closed before a response was received`
 usually appears when scripts are delayed or loaded in the wrong order due
 to optimization features.

 • **LiteSpeed Lazy Load activity detected** – The console shows
 `[LiteSpeed] Start Lazy Load`, which indicates that the lazy load script
 is controlling image loading. If combined with other JS optimizations, it
 can cause inconsistent page behavior.

 **Most Likely Cause**

 The issue is most likely due to **over-aggressive optimization settings in
 the caching/optimization plugin (LiteSpeed Cache)**, especially when
 features like:

 * Lazy loading
 * JavaScript delay/defer
 * CSS/JS combination

 are all enabled together.

 **Recommended Initial Fix**

 To stabilize the website, it is recommended to:

 • Temporarily disable **JS Combine, Delay JS, and CSS Combine** in the
 optimization settings
 • Review the **Lazy Load configuration** to ensure it is not conflicting
 with the theme or other plugins
 • **Purge and regenerate the site cache** after making adjustments
 • Verify that **only one optimization or caching system is active**

 These steps typically resolve the kind of inconsistent loading behavior
 currently seen on the site.


 Thanks.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64866#comment:1>
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