When using AngularJS, sometimes you may see this error "Referencing DOM nodes in Angular expressions is disallowed". This may be caused by returning a jQuery expression in your scope functions.

For example, following code will have this issue.

angular.module('test', [])  
    .controller('thing', ['$scope', function ($scope) {
        $scope.action = function() {
            return $("#hello").text("World");

This is common when using CoffeeScript, because CoffeeScript adds a return statement by default.

For example, when using CoffeeScript, it's common to have code like this:

$scope.action = () ->

The code above will have this issue. A simple fix for this is:

$scope.action = () ->