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-rw-r--r--modules/caddyhttp/reverseproxy/upstreams.go4
1 files changed, 2 insertions, 2 deletions
diff --git a/modules/caddyhttp/reverseproxy/upstreams.go b/modules/caddyhttp/reverseproxy/upstreams.go
index 09efdd5..528e2c5 100644
--- a/modules/caddyhttp/reverseproxy/upstreams.go
+++ b/modules/caddyhttp/reverseproxy/upstreams.go
@@ -297,8 +297,8 @@ func (au *AUpstreams) Provision(_ caddy.Context) error {
func (au AUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) {
repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
- resolveIpv4 := au.Versions.IPv4 == nil || *au.Versions.IPv4
- resolveIpv6 := au.Versions.IPv6 == nil || *au.Versions.IPv6
+ resolveIpv4 := au.Versions == nil || au.Versions.IPv4 == nil || *au.Versions.IPv4
+ resolveIpv6 := au.Versions == nil || au.Versions.IPv6 == nil || *au.Versions.IPv6
// Map ipVersion early, so we can use it as part of the cache-key.
// This should be fairly inexpensive and comes and the upside of