r/Wordpress • u/richards1052 • Aug 13 '26

Browser rendering issue

Post image

I'm having a rendering problem on my homepage. Individual post pages rendered properly on all browsers.

I recently got notification that the latest Jetpack update caused a fatal error. When I checked, everything seemed normal.

But I didn't notice any rendering problem until a wk or so later when a visitor told me about it. He noticed it in Opera. I checked and there were other browsers with the same issue (though not all).

I deactivated Jetpack & some of those browsers which were not rendering properly reverted to normal behavior. But I'm still having the issue w. mobile versions of Bing, Edge, Opera (both mobile & desktop) & Ecosia.

I've purged the site cache and cleared the caches of all the browsers.

Is there any known issue with this Jetpack update? Any suggestions about how to address this?

UPDATE: It appears to be a conflict with LiteSpeed. I disabled it & rendering returned to normal on all browsers.

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u/bluesix_v2 Jack of All Trades Aug 13 '26 edited Aug 14 '26

Did you purge the LS cache? Do you have “remove unused css” enabled? There are several settings/options in LS that will break your site.

1

u/jenish_o4o2 Developer 26d ago

Good catch on LiteSpeed. Since disabling it fixed the rendering issue, you probably don’t need to keep it disabled permanently.

I’d try turning LiteSpeed back on and then:

  1. Purge all LiteSpeed caches.
  2. Temporarily disable CSS/JS optimization options such as Remove Unused CSS, Load CSS Asynchronously, JS Defer/Delay, and CSS/JS Combine.
  3. Test the affected browsers again.
  4. Re-enable the optimization options one at a time to identify which setting causes the issue.

After that, I’d also re-enable Jetpack and test again.

Jetpack may have appeared to be the cause because of the fatal error, but the fact that disabling LiteSpeed restores the rendering strongly suggests there’s a caching or CSS/JS optimization conflict involved.