oss上传：One or more of the specified parts could not be found or the specified entity tag might not have matched the part’s entity tag

使用OSS Browser浏览器上传文件，提示：

One or more of the specified parts could not be found or the specified entity tag might not have matched the part's entity tag

通过调试浏览器调试提示

<?xml version="1.0" encoding="UTF-8"?>
<Error>
  <Code>InvalidPart</Code>
  <Message>One or more of the specified parts could not be found or the specified entity tag might not have matched the part's entity tag.</Message>
  <RequestId>5EF05589FBD3EC32334477C6</RequestId>
  <HostId>xxxx.oss-cn-hangzhou.aliyuncs.com</HostId>
  <ETag>undefined</ETag>
  <PartNumber>1</PartNumber>
  <UploadId>F045F0886BA142A69671908EEF706C30</UploadId>
</Error>

解决办法很简单有效，是因为这种方式需要跨越，并且需要将特定字段Etag在header中展示出来。阿里云设置跨越如下。

找到指定oss bucket，权限管理>跨域设置>设置>创建规则或者编辑

• 来源：*
• 允许Methods：全部勾选，PUT, GET, POST, DELETE, HEAD
• 允许Headers：*
• 暴露Headers：Etag

设置好刷新浏览器，上传成功。