Support » Plugin: Page Speed Optimization » Above The Fold: Failed to extract JSON for URL

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  • I have the same problem! Could fix it?


    Plugin Author



    I need more info! The plugin is used by over 8000 WordPress websites and I did not discover the problem myself.

    Can you please provide PHP error logs? (with related parts, e.g. a PHP error that occurs directly after you try to export full CSS). I will then investigate the issue and provide a fix.

    Best Regards,
    Jan Jaap

    Hi Jan! Thanks for the quick reply!

    I think the error is related to I use a different URLs from frontend and backend. Besides the backend is https, and the frontend is http.

    When I run the query, the plugin uses the URL of the backend but with http scheme.

    I cant find any related error in the PHP logs.



    An update:

    I update from PHP 5.3 to 5.4 and install the last version of the plugin.

    Now the options in the tab to generate the Critical Path are gone,
    the buttons to generate the critical path disappeared.


Viewing 4 replies - 1 through 4 (of 4 total)
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