Problem


When you open "Theme Builder" page from ShortPoint Dashboard in Chrome browser and click on "Customize my site" button theme builder does not open and page freezes:


In developer tools console you find the following error:



Solution


To fix this make sure the "Page Diagnostics for SharePoint" extension is disabled:


  1. In Chrome go to More Tools => Extensions



  2. Find the "Page Diagnostics for SharePoint" extension

  3. Disable the extension


  4. Go back to you SharePoint site page and refresh the page.