Verbindung über proxy.pac auf einige lokale Sites nicht möglich

function FindProxyForURL(url, host) 
{ 

var proxy_yes = "PROXY xxx.xx.x.xx:8080; DIRECT";  
var proxy_no = "DIRECT";  

	if 
	((url.substring(0, 5) != "http:" ||   
	url.substring(0, 6) != "https:" ||   
	url.substring(0, 4) != "ftp:"))  


   		if 	
			(shExpMatch(url,"localhost")   		||         		  
   			shExpMatch(url, "172.*")              	|| 		  
   			shExpMatch(url, "*.sap.bdo.ch")  	||        		  
   			shExpMatch(url, "*.local")            	||   		  
   			shExpMatch(url, "192.168.200.*")  	||              	  
   			shExpMatch(url, "aba*.bdo.ch")    	||            	  
   			shExpMatch(url, "it*.bdo.ch")         	||      	  
   			shExpMatch(url, "proxy.bdo.ch")   	||    
   			shExpMatch(url, "proxy"))               		  
			return proxy_no;
		

		else return proxy_yes;
	else return proxy_yes;
}

function FindProxyForURL(url, host) 
{ 

var proxy_yes_no = "PROXY xxx.xx.x.xx:8080; DIRECT";  
var proxy_yes = "PROXY xxx.xx.x.xx:8080";  
var proxy_no = "DIRECT";  


	if (url.substring(0, 5) != "http:") 	{return proxy_no;}  
	if (url.substring(0, 6) != "https:")  	{return proxy_no;}  
	if (url.substring(0, 4) != "ftp:")	{return proxy_no;}  
	

   		if (shExpMatch(url,"localhost"))   	{return proxy_no;}	         		  
   		if (shExpMatch(url, "172.*"))           {return proxy_no;}   	 		  
   		if (shExpMatch(url, "*.sap.bdo.ch"))  	{return proxy_no;}       		  
   		if (shExpMatch(url, "*.local"))         {return proxy_no;}  	  		  
   		if (shExpMatch(url, "192.168.200.*"))   {return proxy_no;}            	  
   		if (shExpMatch(url, "aba*.bdo.ch"))     {return proxy_no;}          	  
   		if (shExpMatch(url, "it*.bdo.ch"))      {return proxy_no;}        	  
   		if (shExpMatch(url, "proxy.bdo.ch"))   	{return proxy_no;}  
   		if (shExpMatch(url, "proxy"))           {return proxy_no;}    		  
		

		if (isInNet(myIpAddress(), "xxx..xx.x.x", "255.255.254.0")) {  
 		return proxy_yes; }
  			
  		return proxy_yes_no;

}