Not able to send GIF

[ciaoSora]

Hi.

I want to send a GIF by its URL, but I can only receive a static picture on the wechat client. This is my code

    const file = FileBox.fromUrl("https://cdn2.thecatapi.com/images/MTc4MTA5OA.gif")
    console.log("MIME: " + file.mimeType)
    file.toFile("./haha.gif", true)
    room.say(file)

Any ideas? Thanks a lot!