Removes default bypass rules in proxy_conf_helper

ShadowsocksX-NG/AppDelegate.swift

@@ -103,6 +103,15 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCenterDele
             "Kcptun.LocalPort": NSNumber(value: 8388),
             "Kcptun.Conn": NSNumber(value: 1),
             ])
+
+        // To keep the default exception values backward compatible, we set it
+        // to the previously hardcoded value if the key doesn't exist.
+        // Registering defaults won't work because the empty state is a valid
+        // value, and Cocoa Bindings won't distinguish between empty and string
+        // values.
+        if defaults.string(forKey: "ProxyExceptions") == nil {
+            defaults.set("127.0.0.1, localhost, 192.168.0.0/16, 10.0.0.0/8", forKey: "ProxyExceptions")
+        }
         
         statusItem = NSStatusBar.system.statusItem(withLength: AppDelegate.StatusItemIconWidth)
         let image : NSImage = NSImage(named: NSImage.Name(rawValue: "menu_icon"))!