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Hello,
No adblocker is present on my system or browsers, however I have resolved this issue at my end; It appears that a recent update to the Enfold theme changed how HTTP/2 was processed, and adjusting the configuration of my website (in the PERFORMANCE section) to enable included bugfixes (as well as setting a couple other options) has my site working correctly again in Edge and Chrome browsers. I hope this post might help anyone else experiencing the same issues.