Merge branch 'update-defensive-conding'

Author: naugtur

defensive-coding/exercise/attacks/attack5.js

@@ -4,10 +4,14 @@ export const attack = (authzManager, success) => {
       const stolenAcc = args[0]({}, { url: "z", headers: {} }, 0);
       success(stolenAcc["z"]);
       return {};
+    } else if (this === Array.prototype.includes) {
+      success(thisArg);
+      return true;
     } else {
       this.apply(thisArg, args);
     }
   };
 
   authzManager.authorizedFetch([]);
+  authzManager.guessSecret('wrong')
 };