[bug report] no enter active animation in El image preview

[carlhong]

Element UI version

2.13.2

OS/Browsers version

mac 10.15.5/chrome 83.0.4103.61

Vue version

2.6.10

Reproduction Link

https://codepen.io/carlhong/pen/OJMLMzQ

Steps to reproduce

点击图片即可

What is Expected?

显示预览大图有enter-active动画，关闭有leave-active动画

What is actually happening?

显示预览大图时没有enter-active动画，不过关闭时有leave-active动画

[element-bot]

Translation of this issue:

Element UI version

2.13.2

OS/Browsers version

mac 10.15.5/chrome 83.0.4103.61

Vue version

2.6.10

Reproduction Link

https://codepen.io/pen/?&editable=true=https%3A%2F%2Felement.eleme.cn%2F

Steps to reproduce

Click the picture

What is Expected?

Display preview large picture with enter active animation and close with leave active animation

What is actually happening?

There is no enter active animation when displaying the preview large picture, but there is leave active animation when closing

[carlhong]

update the reproduction Link https://codepen.io/carlhong/pen/OJMLMzQ

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.