Angular-animate.js / onAnimationProgress(event) function null error IE

[ghost]

Browser: IE 9, 10, 11
Angular-Animate Version: v1.2.21
Issue: ev.elaspedTime is null and calling the toFixed function on this causes an exception.

[caitp]

that would affect non-IE browsers too. Can you provide a minimal reproduction please so that we can write a test case and land a fix?

[pkozlowski-opensource]

@Jamertunes what is the AngularJS version you are using? I can't find any reference to elaspedTime in master...

[caitp]

@pkozlowski-opensource https://github.com/angular/angular.js/blob/master/src/ngAnimate/animate.js#L1958

[pkozlowski-opensource]

@caitp lol, there was a typo in the original bug report:

Issue: ev.elaspedTime is null and calling the toFixed function on this causes an exception.

and I've copied it blindly when grepping :-/ Sorry for the noise

[ghost]

Sorry for the typo. While moving around a page in IE, the event parameter appears to be populating properly. I can reproduce the error only when swapping out page content. When the page changes, the error occurs. The error is being generated in Visual Studio prior to the content loading. Angular version v1.2.21.

[caitp]

but could you please create a runnable example, @Jamertunes --- so that we can reproduce this.

[robertsimmons]

Having the same issue after upgrading to 1.4 from 1.3 (wasn't present before). In our case, similar to your repo jsfiddle, it's a bootstrap modal button inside an element that has animations on it. We have another situation though where it's a bootstrap toggle that causes it as well.

If you put a prevent default in the onclick for the buttons, then it goes away as well. Hope that helps narrow it down.

[rsigmond]

Having the same issue after upgrading from 1.3 to 1.4.6. The error occurs when moving over a hyperlink that contains a callout/title message.

Issue: Unable to get property 'toFixed' of undefined or null reference.
Occurs in method onAnimationProgress in angular.animate.js

The error did not occur in the previous version. Not sure how the onAnimationProgress function is being invoked.

A solution would be greatly appreciated, a clue on how this method is being invoked.

[wiredprogrammer]

I'm getting this issue specifically on IE11 during a bootstrap carousel transition between slides. Running 1.4.7. Same error as rsigmond on the same method. I bump the document mode to IE10 and it goes away. I'm not seeing the error on chrome.

[provegard]

I have tried to understand when this happens, and this is what I've come up with so far:

Bootstrap has a function named emulateTransitionEnd. Here's the one from 3.3.4:

  $.fn.emulateTransitionEnd = function (duration) {
    var called = false
    var $el = this
    $(this).one('bsTransitionEnd', function () { called = true })
    var callback = function () { if (!called) $($el).trigger($.support.transition.end) }
    setTimeout(callback, duration)
    return this
  }

When an event is triggered from emulateTransitionEnd, there is no originalEvent property, so this line in angular-animate uses the jQuery event which doesn't have elapsedTime:

        function onAnimationProgress(event) {
          event.stopPropagation();
          var ev = event.originalEvent || event; // <--- this one here

Note that when emulateTransitionEnd observes a bsTransitionEnd event before the timeout has elapsed, no event is emulated. In this case, onAnimationProgress only observes a real event and no error occurs.

I have only seen the erroneous behavior in IE (11) and not in Chrome. The reason is that in Chrome $.support.transition.end contains "webkitTransitionEnd" rather than "transitionend" (which is what is used for IE). But angular-animate uses a different way (compared to Bootstrap) to determine which event(s) it should listen for and ends up only listening for "transitionend":

• Bootstrap: if (el.style[name] !== undefined) where name is "WebkitTransition"
• angular-animate: if (isUndefined(window.ontransitionend) && isDefined(window.onwebkittransitionend))

So in summary:

• In IE, an emulated "transitionend" event causes onAnimationProgress to use a jQuery event that doesn't contain elapsedTime.
• In Chrome, the emulated event has type "webkitTransitionEnd" which angular-animate ignores.

[OscarBarrett]

I use the following directive to disable ngAnimate on elements that might cause this error to be thrown (for example, bootstrap carousel items).

.directive 'noAnimate', ($animate) ->
  link: (scope, elem, attrs) ->
    $animate.enabled(false, elem)

[Narretz]

@provegard Thanks for the investigation. Do you have an idea how angular should fix this? Or is bootstrap doing something here it probably shouldn't?

[provegard]

@Narretz IMO angular should do better input validation, i.e. ignore the event if it isn't of the expected type. I don't know why Bootstrap emulates transitionend but I suppose there is a good reason. :)