 		// swapped out for quick javascript developement
 		
 		let urlstr = "http://rawgit.com/TomWildenhain/HummingbirdDragAndDrop-/dev/HummingbirdDragAndDrop.html";
-		let javascriptPageURL = URL(string: urlstr.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlFragmentAllowed)!)
-		let req = URLRequest(url: javascriptPageURL!)
+		let cleanUrlStr = urlstr.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlFragmentAllowed)!
+		let javascriptPageURL = URL(string: cleanUrlStr)
+		let req = URLRequest(url: javascriptPageURL!,
+		             cachePolicy: URLRequest.CachePolicy.reloadRevalidatingCacheData)
 		
         self.web_view!.load(req)
         self.view.addSubview(self.web_view!)

    override func motionEnded(_ motion: UIEventSubtype, with event: UIEvent?) {
        if (motion == UIEventSubtype.motionShake){
            wasShaken = true
            shakenTimer = Timer.scheduledTimer(timeInterval: TimeInterval(5), target: self, selector: #selector(ViewController.expireShake), userInfo: nil, repeats: false)
        }
    }
    func expireShake(){

    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        NSLog(navigation.description)
    }
    func webView(_ webView: WKWebView,
	decidePolicyFor navigationAction: WKNavigationAction,
	decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        decisionHandler(WKNavigationActionPolicy.allow)
    }
    
