AngularJs/ .provider / how to get the rootScope to make a broadcast?

You can inject the injector and lookup the $rootScope.

Demo plunkr: http://plnkr.co/edit/0hpTkXx5WkvKN3Wn5EmY?p=preview

myApp.factory('$exceptionHandler',function($injector){    return function(exception, cause){        var rScope = $injector.get('$rootScope');        if(rScope){            rScope.$broadcast('exception',exception, cause);        }    };})

Update: add .provider technique too:

app.provider('$exceptionHandler', function() {  // In the provider function, you cannot inject any  // service or factory. This can only be done at the  // "$get" method.  this.$get = function($injector) {    return function(exception,cause){      var rScope = $injector.get('$rootScope');      rScope.$broadcast('exception',exception, cause);      }  };});

My way of doing this - using a decorator and reverting to the previous exception handler on unknown errors:

app.config(function ($provide) {  $provide.decorator('$exceptionHandler', function($delegate, $injector) {    return function (exception, cause) {      if (ICanHandleThisError) {        var rootScope= $injector.get('$rootScope');        // do something (can use rootScope)      } else       $delegate(exception, cause);    };  });});

You need to inject the $rootScope:

.provider('$exceptionHandler', '$rootScope', function(){//and here I would like to have rootScope to make event broadcast})

Is this what you tried? And if so do you have an error message or a jsfillde/plnkr to see why it failed?