Webm download behavior in safari 17.4

webm download behaviour changed since 17.4. Headers were changed which caused "Security Errors" while trying to access content from webm resource downloaded by cross-domain.

STR - Just open link in browser: https://dl6.webmfiles.org/big-buck-bunny_trailer.

Safari 17.2: Two partition requests are sent, both have “accept-encoding” set as “identity”

Safari 17.4: One request is sent with “accept-encoding” set as “gzip, deflate, br”