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-rw-r--r--modules/caddyhttp/headers/caddyfile.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/modules/caddyhttp/headers/caddyfile.go b/modules/caddyhttp/headers/caddyfile.go
index 75498b2..574e54b 100644
--- a/modules/caddyhttp/headers/caddyfile.go
+++ b/modules/caddyhttp/headers/caddyfile.go
@@ -46,6 +46,10 @@ func init() {
// and ? conditionally sets a value only if the header field is not already
// set.
func parseCaddyfile(h httpcaddyfile.Helper) ([]httpcaddyfile.ConfigValue, error) {
+ if !h.Next() {
+ return nil, h.ArgErr()
+ }
+
matcherSet, err := h.ExtractMatcherSet()
if err != nil {
return nil, err