How to override $exceptionHandler implementation

Another option I’ve found for this is to “decorate” the $exceptionHandler through the $provide.decorator function. This provides you with a reference to the original implementation if you want to use it as part of your custom implementation. So, you can do something like this:

mod.config(function($provide) {
    $provide.decorator("$exceptionHandler", ['$delegate', function($delegate) {
        return function(exception, cause) {
            $delegate(exception, cause);
            alert(exception.message);
        };
    }]);
});

It will do what the original exception handler does, plus custom functionality.

See this updated fiddle.