Upgrade StorageNeed help：failed to authenticate the server when using https webdav to synchronize attachments
## Testing environment
OS：Windows
188BET靠谱吗Zotero Version：7.0.0-beta.81+721f54fe4 (64-bit)
WebDAV Server：Enable webdav's synology server
SSL Certificate：Universal domain certificate applied for through let's encrypt.This issue is issued by the ZeroSSL ECC Domain Secure Site CA
## Problem encountered
An error message is displayed as "SEC_ERROR_UNKNOWN_ISSUER" and the path and password of the account are correct.
## Supplementary instruction
Tests by www.sslshopper.com/ssl-checker.html showed that the ssl certificate was fine.And the raidrive software was used to test https WebDAV successfully.
OS：Windows
188BET靠谱吗Zotero Version：7.0.0-beta.81+721f54fe4 (64-bit)
WebDAV Server：Enable webdav's synology server
SSL Certificate：Universal domain certificate applied for through let's encrypt.This issue is issued by the ZeroSSL ECC Domain Secure Site CA
## Problem encountered
An error message is displayed as "SEC_ERROR_UNKNOWN_ISSUER" and the path and password of the account are correct.
## Supplementary instruction
Tests by www.sslshopper.com/ssl-checker.html showed that the ssl certificate was fine.And the raidrive software was used to test https WebDAV successfully.