From the Knowledge Base

Caching on WP.com with Page Optimizer

Caching on WP.com uses the Page Optimize caching tool and requires a different configuration than other 3rd party caching plugin. You must add the plugin's data-handle attribute value into the exclusions. This must be done for both the JS files

Setting up fake worker failed Error on update

This error comes up if there is a caching and/or minifying plugin on the site that has cached the previous version of the plugin scripts and now does not match with the updated plugin. To rectify this error, you need

Error: Failed to Fetch and GoDaddy Hosting

The Failed to Fetch error occurring on GoDaddy may be a recent problem for your site that had previously worked without issue. This is due to the new CDN that GoDaddy has implemented on their hosting packages. The cause of

The API version does not match the Worker version Error on update

This error comes up if there is a caching and/or minifying plugin on the site that has cached the previous version of the plugin scripts and now does not match with the updated plugin. To rectify this error, you need

Gutenberg Editor and PDF Embedder

The PDF Embedder plugin v.4.0 for the free, Premium, and Secure versions work with WordPress v.5.0 and Gutenberg Editor plugin v.4.6.1. Open the Common Blocks menu and select the PDF Embedder: An element will be inserted into the page /

Using Caching or Minifying Plugins

Using WP Super Cache, W3 Total Cache, WP Rocket, Autoptimize, or other plugins to minify and/or cache the scripts running on your site has been known to create issues with the plugin's function. Some themes also provided caching / minifying of

Error: Failed to Fetch

You will usually see this error in your browser because your PDF does not sit on the same domain as the current page on your site. For example, if you access the page http://www.mycompany.com/ and see the error message: Failed

Invalid PDF Structure in Edge browser only

This is a strange issue, and really your web hosting company may have to investigate. You may find that your web server sometimes redirects requests for the PDF file to your home page. If you enter the PDF URL directly

After PDF loads, the page is cut off vertically or cannot scroll

Some Themes have Javascript code that automatically adds scrollbars or positions other features depending on the exact height of every item on the page. However, because PDF Embedder changes height after the PDF is fully loaded, the Theme really needs

Unexpected server response (204)

If you see this error message, do you have a download manager installed on your browser? This sometimes causes problems - maybe take a look at your extensions, and also try on a different browser to see if that works.

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