Javascript errors from Google Adsense

Question

On several of my adsense running sites, I have been getting the following errors:

Unable to post message to [http://]googleads.g.doubleclick.n

Answer 1

In the Sites tab in your Google Adsense dashboard (web or app version). Make sure your site is setup with your-domain.com (or whichever tld) as the domain and www.your-domain.com as a subdomain.