AngularJS Not Getting Latest Data From Database - angularjs

Question

I have a factory.all() function that gets called on page load. However, whenever I enter a new entry into my MongoDB or delete one, it is not refreshing. I am logging (data) to console to see how many objects are returned. Currently, I have four being returned. Even when I delete one of them, and refresh the page, 4 objects are still logged to the console. Is this a Browser caching issue? Is there a way to counter this?
My controller:
angular.module('quizCtrl', [])
.controller('quizController', function(Quiz) {
// Assign local variable to be used in application
var vm = this;
// To Load All Quizzes on Application
Quiz.all().success(function(data) {
console.log(data);
});
My Factory:
angular.module('quizService', [])
.factory('Quiz', function($http) {
// create a new object
var quizFactory = {};
// get a single quiz
quizFactory.get = function(id) {
return $http.get('/api/quiz/' + id);
};
// get all quizzes
quizFactory.all = function() {
return $http.get('/api/quiz/');
};
// create a quiz
quizFactory.create = function(quizData) {
return $http.post('/api/quiz/', quizData);
};
// update a quiz
quizFactory.update = function(id, quizData) {
return $http.put('/api/quiz/' + id, quizData);
};
// delete a quiz
quizFactory.delete = function(id) {
return $http.delete('/api/quiz/' + id);
};
// return our entire quizFactory object
return quizFactory;
});
Endpoint:
// GET request to load ALL quiz at once
apiRouter.route('/quiz')
.get(function(req, res) {
Quiz.find({}, function(err, quiz) {
if (err) res.json({ message: "Error: " + err})
res.json(quiz);
});
});
// GET request to get a specific quiz only
apiRouter.route('/quiz/:quiz_id')
// get the user with that id
.get(function(req, res) {
Quiz.findById(req.params.quiz_id, function(err, quiz) {
if (err) res.json("Error: " + err);
// return that user
res.json(quiz);
});
});
HTML Displaying Data
<div class="panel panel-success" ng-show="quiz.quiz">
<div class="panel-heading">
<div class="panel-title">{{ quiz.quiz.question }}
<div style="float:right">
{{ ex.createdAt | date : "MMM d, y h:mm a" }}
</div>
</div>
</div>
<div class="panel-body">
<button type="button" class="btn btn-default" ng-click="quiz.submitAnswer(quiz.quiz.answers[0], quiz.quiz._id, quiz.quiz.correctAnswer)" ng-disabled="quiz.isDisabled">A. {{ quiz.quiz.answers[0] }}</button><br><br>
<button type="button" class="btn btn-default" ng-click="quiz.submitAnswer(quiz.quiz.answers[1], quiz.quiz._id, quiz.quiz.correctAnswer)"" ng-disabled="quiz.isDisabled">B. {{ quiz.quiz.answers[1] }}</button><br><br>
<button type="button" class="btn btn-default" ng-click="quiz.submitAnswer(quiz.quiz.answers[2], quiz.quiz._id, quiz.quiz.correctAnswer)" ng-disabled="quiz.isDisabled">C. {{ quiz.quiz.answers[2] }}</button><br><br>
<button type="button" class="btn btn-default" ng-click="quiz.submitAnswer(quiz.quiz.answers[3], quiz.quiz._id, quiz.quiz.correctAnswer)"" ng-disabled="quiz.isDisabled">D. {{ quiz.quiz.answers[3] }}</button><br><br>
<div class="alert alert-info" role="alert" ng-if="(quiz.successMessage)">
<strong>{{ quiz.successMessage }}</strong> is correct.
</div>
<div class="alert alert-danger" role="alert" ng-if="(quiz.failureMessage)">
<strong>{{ quiz.failureMessage }}</strong> is incorrect.
</div>
<div class="alert alert-success" role="alert" ng-if="(quiz.correctMessage)">
Correct answer is: <strong>{{ quiz.correctMessage }}</strong>
</div>
Correct So Far: {{ quiz.correctSoFar }}
</div>
<div class="panel-body">
<div class="panel-body">Posted by: {{ exam.postedBy }}</div>
<div style="float:right">
<button class="btn btn-success" type="button" ng-click="quiz.nextQuestion()" ng-if="quiz.isDisabled">Next</button>
</div>
</div>
</div>
</div>