正常情况下，浏览器执行PUT请求会返回上传进度
在Safari 浏览器上，Ipad 16，Ipad 17 均正常，Ipad 18 上传进度返回一直不变
ipad版本兼容性问题
ipad （16+Safari）：动作正常（逐步显示上传进度）
ipad （17+Safari）：动作正常（逐步显示上传进度）
ipad （18+Safari）：动作不正常（显示1%直到完成）
wangzitong1006
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution