Angular version of FitText

This project has evolved a lot since I started learning Angular. I'm pretty happy with it now, and I'm wondering if there's anything I can improve upon, or have forgotten at this point...

HTML

<h1 data-fittext>FitText</h1>

<h1 data-fittext=".315" data-fittext-min="12" data-fittext-max="50">ng-FitText</h1>

Inclusion & Customization

var myApp = angular.module( 'myApp', [ 'ngFitText' ] );

myApp.config( function( fitTextConfigProvider ) {
    fitTextConfigProvider.config = {
        debounce: true, //default is false
        delay: 1000 //default is 250
    };

    // OR

    fitTextConfigProvider.config.debounce = true;
    fitTextConfigProvider.config.delay = 1000;
});

The Module

'use strict';

angular.module( 'ngFitText', [] )
    .value( 'config', {
        'debounce': false,
        'delay': 250
    })

    .directive( 'fittext', [ 'config', 'fitTextConfig', function( config, fitTextConfig ) {
        return {
            restrict: 'A',
            scope: true,
            transclude: true,
            replace: true,
            template: function( element, attrs ) {
                var tag = element[0].nodeName;
                return "<"+tag+" data-ng-transclude data-ng-style='{fontSize:fontSize}'></"+tag+">";
            },
            link: function( scope, element, attrs ) {
                angular.extend(config, fitTextConfig.config);

                scope.compressor = attrs.fittext || 1;
                scope.minFontSize = attrs.fittextMin || Number.NEGATIVE_INFINITY;
                scope.maxFontSize = attrs.fittextMax || Number.POSITIVE_INFINITY;
                scope.elementWidth = element[0].offsetWidth;

                ( scope.resizer = function() {
                    scope.elementWidth = element[0].offsetWidth;
                    scope.fontSize = Math.max(
                        Math.min(
                            scope.elementWidth / ( scope.compressor * 10 ),
                            parseFloat( scope.maxFontSize )
                        ),
                        parseFloat( scope.minFontSize )
                    ) + 'px';

                    if( !scope.$$phase ) scope.$digest();
                })();

                config.debounce == true
                    ? angular.element( window ).bind( 'resize', debounce( scope.resizer, config.delay ))
                    : angular.element( window ).bind( 'resize', scope.resizer);

                function debounce(a,b,c){var d;return function(){var e=this,f=arguments;clearTimeout(d),d=setTimeout(function(){d=null,c||a.apply(e,f)},b),c&&!d&&a.apply(e,f)}}
            }
        }
    }])

    .provider( 'fitTextConfig', function() {
        var self = this;
        this.config = {};
        this.$get = function() {
            var extend = {};
            extend.config = self.config;
            return extend;
        };
        return this;
    });