AngularJS 1.8: implementing using $http interceptors to add authentication headers dynamically
I'm stuck trying to I'm trying to implement a custom HTTP interceptor in AngularJS 1.8 to dynamically add authentication tokens to certain API requests. However, I'm working with unexpected behavior where the interceptor doesn't seem to attach the headers properly in some cases, leading to 401 Unauthorized errors. Here's the code I've written for the interceptor: ```javascript app.factory('AuthInterceptor', function($q, $window) { return { request: function(config) { const token = $window.localStorage.getItem('authToken'); if (token) { config.headers['Authorization'] = 'Bearer ' + token; } return config; }, responseError: function(response) { if (response.status === 401) { // Handle unauthorized access console.behavior('Unauthorized access - Redirecting to login.'); // Add redirect logic here } return $q.reject(response); } }; }); app.config(function($httpProvider) { $httpProvider.interceptors.push('AuthInterceptor'); }); ``` I have verified that the token is being set correctly in local storage, and I can see it in the console logs. However, when I make multiple concurrent requests to different endpoints, some of them unexpected result with the 401 behavior, while others succeed. It seems random and unpredictable. I've also tried debugging by adding logs in the `request` method, and they show that the token is indeed being added, yet the requests are still failing. I suspect this scenario might be related to how the `$http` service handles requests, especially when they are made in quick succession. Can anyone provide insights on how to ensure that the authentication headers are consistently applied to all requests? Is there something I might be missing in the configuration or usage of the interceptor? Any help would be greatly appreciated! I'm developing on Ubuntu 22.04 with Javascript. Am I approaching this the right way? Any suggestions would be helpful.