iOS: Your file could not be load

今天提交苹果审核的时候上传不了应用截图，一直报这个错，取消了图片的 Alpha 选项也是一样，后来在 Stackoverflow 里找到了解决方法。

I ran into this problem when trying to upload screenshots via Chrome (Version 59.0.3071.115), which consistently failed, whereas Safari Version 10.1.1 (12603.2.4) worked fine.

你说气不气，把 Chrome 换成了 Safari 就好了，还 Try again 你大爷 :)