handle null/whitespace URLs

Author: tomysshadow

FlashpointSecurePlayer/Shared.cs

@@ -1987,6 +1987,10 @@ public string this[string shortPath] {
         private const string URI_SCHEME_FTP = "ftp";
 
         public static string GetValidatedURL(string url) {
+            if (String.IsNullOrWhiteSpace(url)) {
+                return String.Empty;
+            }
+
             url = url.Trim();
 
             // first try a guessed scheme

FlashpointSecurePlayer/WebBrowserMode.cs

@@ -450,7 +450,7 @@ public void BrowserGo(string url) {
                 return;
             }
 
-            if (String.IsNullOrEmpty(url)) {
+            if (String.IsNullOrWhiteSpace(url)) {
                 AddressInvalid();
                 return;
             }