How to remove third party favicon on my site?

When submitting a form on my site, the user is redire开发者_Go百科cted to the third party email campaigns site. When redirected back to my site the favicon of the third remains on my page. How can I get rid of it?

This could happen if you don't have a favicon on the site itself (If you don't want/have a favicon that you'd want to use, you can use an empty image for a favicon).

For best compatibility, I'd suggest having both a /favicon.ico, and a link to it in your HTML document, as seen e.g. here: http://en.wikipedia.org/wiki/Favicon#Accessibility