Cannot Connect to WebDAV Server Held by IIS

000lbh
Before Zotero 7 this is OK, but after updated to Zotero 8 and 9, connection to IIS WebDAV is always failed. With the help of Wireshark, I found that the credentials were not sent to server in the first and only OPTIONS request and the response is 401, and then Zotero throws an error and reject the WebDAV address. Other WebDAV client, like dolphin, works properly with that WebDAV address.

Can anyone reproduce the bug and give some advice?
  • dstillman Zotero Team
    Can you provide a Debug ID for a Verify Server attempt that fails?

    The underlying network library in Zotero 8 stopped preemptively sending HTTP auth credentials in most cases, but we made a number of changes in later Zotero 8 releases to try to address compatibility with certain servers, and we haven't heard of other problems since. We'll need to see exactly what your server is doing to say more.
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