Google toolbar 5 beta - disable interception 404

I put the beta and found that it still replaces the page with a 404 error with its own, leading it from the server where the error occurred. It is useful to look for where to turn off and found -
Options - Search tab - remove the checkbox from the item. Voila

For website owners, there is also a solution to the problem; a custom 404 error page with a size of more than 512 bytes should be written on the site.