Some sites are broken in the browser when using the proxy

[mamantoha]

Examples:

• http://serdardogruyol.com/
• http://shards.info/
• http://www.pyslvs.com/
• http://news-te.blogspot.com/
• https://ubuntu.com/blog/dell-xps-13-developer-edition-with-ubuntu-20-04-lts-pre-installed-is-now-available