clean ruby http response from unsupportes symbols

http_response_clean.rb

def cleaned_content body
	begin
		cleaned = body.dup.force_encoding('UTF-8')
		unless cleaned.valid_encoding?
			cleaned = body.encode('UTF-8', 'Windows-1251')
		end
		content = cleaned
	rescue EncodingError
		content = body.encode('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '').encode("utf-8")
	end
	content
end