$rootScope:inprog uncaught exception when swiping several times in the Swipe demo page

[yoav-zibin]

Just swipe once left in this page:
https://material.angularjs.org/latest/demo/swipe

See printscreens below, and this exception:

angular.js:12520 Error: [$rootScope:inprog] http://errors.angularjs.org/1.4.8/$rootScope/inprog?p0=%24apply
    at Error (native)
    at https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:6:416
    at t (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:126:132)
    at r.$apply (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:133:515)
    at HTMLDivElement.<anonymous> (https://material.angularjs.org/latest/angular-material.min.js:11:29662)
    at If (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:35:367)
    at HTMLDivElement.Hf.d (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:35:314)
    at Object.o [as dispatchEvent] (https://material.angularjs.org/latest/angular-material.min.js:7:19164)
    at Object.g.handler.handler.handler.handler.onEnd (https://material.angularjs.org/latest/angular-material.min.js:7:18268)
    at Object.r.end (https://material.angularjs.org/latest/angular-material.min.js:7:19670)(anonymous function) @ angular.js:12520(anonymous function) @ angular.js:9292r.$apply @ angular.js:16157(anonymous function) @ angular-material.min.js:11If @ angular.js:3346Hf.d @ angular.js:3334o @ angular-material.min.js:7g.handler.handler.handler.handler.onEnd @ angular-material.min.js:7r.end @ angular-material.min.js:7i @ angular-material.min.js:7f @ angular-material.min.js:7Jf @ angular.js:3357Hf.d @ angular.js:3334$scope.onSwipeLeft @ docs-demo-scripts.js:1752fn @ VM291:4(anonymous function) @ angular-material.min.js:11r.$eval @ angular.js:16052r.$apply @ angular.js:16152(anonymous function) @ angular-material.min.js:11If @ angular.js:3346Hf.d @ angular.js:3334o @ angular-material.min.js:7g.handler.handler.handler.handler.onEnd @ angular-material.min.js:7r.end @ angular-material.min.js:7i @ angular-material.min.js:7f @ angular-material.min.js:7If @ angular.js:3346Hf.d @ angular.js:3334
angular.js:12520 Error: [$rootScope:inprog] http://errors.angularjs.org/1.4.8/$rootScope/inprog?p0=%24apply
    at Error (native)
    at https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:6:416
    at t (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:126:132)
    at r.$digest (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:130:273)
    at r.$apply (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:134:78)
    at HTMLDivElement.<anonymous> (https://material.angularjs.org/latest/angular-material.min.js:11:29662)
    at If (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:35:367)
    at HTMLDivElement.Hf.d (https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js:35:314)
    at Object.o [as dispatchEvent] (https://material.angularjs.org/latest/angular-material.min.js:7:19164)
    at Object.g.handler.handler.handler.handler.onEnd (https://material.angularjs.org/latest/angular-material.min.js:7:18268)(anonymous function) @ angular.js:12520(anonymous function) @ angular.js:9292r.$apply @ angular.js:16162(anonymous function) @ angular-material.min.js:11If @ angular.js:3346Hf.d @ angular.js:3334o @ angular-material.min.js:7g.handler.handler.handler.handler.onEnd @ angular-material.min.js:7r.end @ angular-material.min.js:7i @ angular-material.min.js:7f @ angular-material.min.js:7Jf @ angular.js:3357Hf.d @ angular.js:3334$scope.onSwipeLeft @ docs-demo-scripts.js:1752fn @ VM291:4(anonymous function) @ angular-material.min.js:11r.$eval @ angular.js:16052r.$apply @ angular.js:16152(anonymous function) @ angular-material.min.js:11If @ angular.js:3346Hf.d @ angular.js:3334o @ angular-material.min.js:7g.handler.handler.handler.handler.onEnd @ angular-material.min.js:7r.end @ angular-material.min.js:7i @ angular-material.min.js:7f @ angular-material.min.js:7If @ angular.js:3346Hf.d @ angular.js:3334

BTW, note of advice: you should automatically catch all errors happening in the demo site so you'll be notified. Luckily I had the console opened so I saw the error :)