can not use display:none in v1.2.2, but it works fine in v1.2.1 

I find the code to cause problems.

```
if (!lastAnimationFrame) {
     lastAnimationFrame = requestAnimationFrame(function () {
                lastAnimationFrame = 0

                reset()
              })
            }

...

// Fix for custom Elements
// this code cause the value of lastAnimationFrame is not 0
lastAnimationFrame = requestAnimationFrame(reset)
```