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wordpress version 5.6, PHP 7.4.10 64bit. Launching the Site Health page from the admin console I get this js error, visible through the chrome console:

Uncaught TypeError: Cannot read property 'applyFilters' of undefined
    at Object.<anonymous> (site-health.min.js?ver=5.6:2)
    at c (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.6:2)
    at Object.fireWith [as resolveWith] (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.6:2)
    at l (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.6:2)
    at XMLHttpRequest.<anonymous> (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.6:2)

The Site Health page remains continuously "Loading results ..."

If it helps, I extracted the facility information from the Site Health tab = debug. Does anyone already know the problem and know how I can fix it?

Thanks a lot to everyone

Zed Marlin
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1 Answers1

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WordPress 5.6 updates jQuery in the admin to the latest version. This may stop some old plugins from working, and this is likely affecting your Site Health function. One of your plugins most likely needs updating.

  • Disable all plugins, see if issue remains.
  • Enable plugins one by one until the issue returns.
  • Ask the plugin author to update the plugin or switch to another.
  • Install the jQuery Migrate Helper plugin

Some of the features no longer working will just stop working behind the scenes without any apparent problem.

The jQuery Migrate Helper plugin will let you downgrade to a previous version of jQuery.

thetwopct
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