[CORD-1117] XOS GUI Various fix

Change-Id: I4237a5e23509e9173c958d76aa929a70583ba1e6
diff --git a/src/app/core/services/keyboard-shortcut.spec.ts b/src/app/core/services/keyboard-shortcut.spec.ts
index b573656..deb04b7 100644
--- a/src/app/core/services/keyboard-shortcut.spec.ts
+++ b/src/app/core/services/keyboard-shortcut.spec.ts
@@ -7,6 +7,7 @@
 let $log: ng.ILogService;
 let $transitions: any;
 let XosSidePanel: IXosSidePanelService;
+let logSpy: any;
 
 const baseGlobalModifiers: IXosKeyboardShortcutBinding[] = [
   {
@@ -55,6 +56,7 @@
       $log = _$log_;
       $transitions = _$transitions_;
       XosSidePanel = _XosSidePanel_;
+      logSpy = spyOn($log, 'warn');
     });
 
     service = new XosKeyboardShortcut($log, $transitions, XosSidePanel);
@@ -167,13 +169,11 @@
     });
 
     it('should not add binding that has an already registered key', () => {
-      function errorFunctionWrapper() {
-        service['registerKeyBinding']({
-          key: 'A',
-          cb: 'cb'
-        }, 'global');
-      }
-      expect(errorFunctionWrapper).toThrow(new Error('[XosKeyboardShortcut] A shortcut for key "a" has already been registered'));
+      service['registerKeyBinding']({
+        key: 'A',
+        cb: 'cb'
+      }, 'global');
+      expect(logSpy).toHaveBeenCalledWith('[XosKeyboardShortcut] A shortcut for key "a" has already been registered');
     });
   });
 });
diff --git a/src/app/core/services/keyboard-shortcut.ts b/src/app/core/services/keyboard-shortcut.ts
index e814943..35af07e 100644
--- a/src/app/core/services/keyboard-shortcut.ts
+++ b/src/app/core/services/keyboard-shortcut.ts
@@ -120,7 +120,8 @@
 
     binding.key = binding.key.toLowerCase();
     if (_.find(this.keyMapping.global, {key: binding.key}) || _.find(this.keyMapping.view, {key: binding.key})) {
-      throw new Error(`[XosKeyboardShortcut] A shortcut for key "${binding.key}" has already been registered`);
+      this.$log.warn(`[XosKeyboardShortcut] A shortcut for key "${binding.key}" has already been registered`);
+      return;
     }
 
     this.$log.debug(`[XosKeyboardShortcut] Registering binding for key: ${binding.key}`);