'address': the host, or a redirect's host, resolves to an address that is not public.
'host': the host, or a redirect's host, is one the caller's allowHost does not allow, or that rule failed.
'scheme': not an http: or https: address, not an address at all, or one with a user name or password.
'port': a port the caller does not allow.
'redirects': more redirects than maxRedirects.
'status': an answer other than 2xx, a redirect without an address, or a protocol upgrade.
'type': a media type the caller does not accept, or a body in a coding the request did not ask for.
'size': a body past maxBytes, as it arrives or after decoding.
'deadline': the read took longer than deadlineMs.
'network': the host has no address, the lookup, the connection or the read failed, or the
network's NAT64 prefixes could not be read for a host with an IPv6 address.
Why a fetch was refused or stopped:
'address': the host, or a redirect's host, resolves to an address that is not public.'host': the host, or a redirect's host, is one the caller'sallowHostdoes not allow, or that rule failed.'scheme': not anhttp:orhttps:address, not an address at all, or one with a user name or password.'port': a port the caller does not allow.'redirects': more redirects thanmaxRedirects.'status': an answer other than 2xx, a redirect without an address, or a protocol upgrade.'type': a media type the caller does not accept, or a body in a coding the request did not ask for.'size': a body pastmaxBytes, as it arrives or after decoding.'deadline': the read took longer thandeadlineMs.'network': the host has no address, the lookup, the connection or the read failed, or the network's NAT64 prefixes could not be read for a host with an IPv6 address.