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.
Builder instance for fluent chaining
Set enableSiteSpecificQuirks property.