WebKit2.Settings.enable_site_specific_quirks

Settings.enable_site_specific_quirks: Boolean (Read / Write / Construct)
  

Whether to turn on site-specific quirks. Turning this on will tell WebKit to use some site-specific workarounds for better web compatibility. For example, older versions of MediaWiki will incorrectly send to WebKit a css file with KHTML workarounds. By turning on site-specific quirks, WebKit will special-case this and other cases to make some specific sites work.