rclone: [WebDAV] Can not replace http `Referer`?

Rclone version: v1.57.0

---

my conf file

[AList]
type = webdav
url = http://192.168.2.2:5244/dav
vendor = other
user = *
pass = *
headers = "Referer","https://www.mycustom.com/drive","XXX","YYY"

log file

2022/03/17 02:41:23 DEBUG : <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
2022/03/17 02:41:23 DEBUG : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2022/03/17 02:41:23 DEBUG : HTTP REQUEST (req 0xc00014f400)
2022/03/17 02:41:23 DEBUG : GET /** HTTP/1.1
Host: **
User-Agent: rclone/v1.57.0
Depth: 0
Range: bytes=341114880-682229759
Referer: http://192.168.2.2:5244/dav/%E8%A5%BF%E9%81%8A%E8%A8%98/MUX_1.mkv
Xxx: YYY

It doesn’t seem to use the Referer in the conf file. And the Header’s key is forced to be capitalized.

How can i custom the Referer?