Title: Cannot load script at:
Last modified: July 28, 2021

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# Cannot load script at:

 *  Resolved [whu1](https://wordpress.org/support/users/whu1/)
 * (@whu1)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/cannot-load-script-at-2/)
 * Hello, is there a Problem with WP5.8. I get this error!? thank you
 * Setting up fake worker failed: “Cannot load script at: https: /plugins/pdf-embedder/
   js/pdfjs/pdf-4.6.2.min.js,qver=4.6.2.pagespeed.ce.JWXIrGgm2e.worker.js”.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [PDFG Support](https://wordpress.org/support/users/wppdfsupport/)
 * (@wppdfsupport)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/cannot-load-script-at-2/#post-14710734)
 * Hi [@whu1](https://wordpress.org/support/users/whu1/),
 * The issue is with your Pagespeed caching and not specifically due to the 5.8 
   update. There are two possible solutions—if the first one does not work for you,
   then try the second. After each change, make sure that you flush the cache to
   reload the scripts.
    1. You should take a look at the hosting configuration for Web Optimisation options
       that you can activate to optimise the site. I have had other customer that had
       activated their “One Click Optimisation” which “applies the most popular optimisation
       filters that should help improve page loading times without risking functionality”.
       By deactivating the option to Combine JavaScript which “Seeks to reduce the 
       number of HTTP requests made by a browser during page refresh by replacing multiple
       distinct JavaScript files with a single one” the issue is resolved.
    2. If you do not have the above interface, you can add “ModPagespeedJsPreserveURLs
       on” in the config file for PageSpeed to inform the cache not to combine and 
       rewrite the script paths which is causing this error
 * If you have any other questions, please feel free to send an email to [contact@wp-pdf.com](https://wordpress.org/support/topic/cannot-load-script-at-2/contact@wp-pdf.com?output_format=md)
   as we may not see messages posted here to respond in a timely fashion.
 *  Thread Starter [whu1](https://wordpress.org/support/users/whu1/)
 * (@whu1)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/cannot-load-script-at-2/#post-14713179)
 * Hello, thanks for your reply. there is noch pagespeed tool installed in this 
   wordpress installation? any ohter reasons possible? thank you
 *  [PDFG Support](https://wordpress.org/support/users/wppdfsupport/)
 * (@wppdfsupport)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/cannot-load-script-at-2/#post-14715415)
 * Hi [@whu1](https://wordpress.org/support/users/whu1/),
 * The PageSpeed Optimization is installed on the _server side_ through your hosting
   provider. Adjustments need to be made in the hosting account and not through 
   the WP admin.
 * The error definitely points to the PageSpeed cache being the issue: Cannot load
   script at: https: /plugins/pdf-embedder/js/pdfjs/pdf-4.6.2.min.js,qver=4.6.2.**
   pagespeed**.ce.JWXIrGgm2e.worker.js

Viewing 3 replies - 1 through 3 (of 3 total)

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## Tags

 * [caching](https://wordpress.org/support/topic-tag/caching/)
 * [pagespeed](https://wordpress.org/support/topic-tag/pagespeed/)

 * 3 replies
 * 2 participants
 * Last reply from: [PDFG Support](https://wordpress.org/support/users/wppdfsupport/)
 * Last activity: [4 years, 10 months ago](https://wordpress.org/support/topic/cannot-load-script-at-2/#post-14715415)
 * Status: resolved