How to stop the Internet explorer script error message from showing up:

You can tell your Internet Explorer to ignore these errors when they occur and not show you an alert about them. Here is the procedure:
  • Open Internet Explorer
  • In the top menu, Click on Tools and then Internet Options
  • Click on the Advanced Tab
  • Find where it says “Disable Script Debugging” and tick the box beside it
  • Now, Find where it says “Display a notification about every script error” and untick the box beside it.
How to stop Internet Explorer script error messages - Technibble