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-rw-r--r--modules/caddyhttp/replacer.go2
-rw-r--r--modules/caddyhttp/replacer_test.go4
2 files changed, 5 insertions, 1 deletions
diff --git a/modules/caddyhttp/replacer.go b/modules/caddyhttp/replacer.go
index b3c7b5d..f595021 100644
--- a/modules/caddyhttp/replacer.go
+++ b/modules/caddyhttp/replacer.go
@@ -172,7 +172,7 @@ func addHTTPVarsToReplacer(repl *caddy.Replacer, req *http.Request, w http.Respo
reqHost = req.Host // OK; assume there was no port
}
hostLabels := strings.Split(reqHost, ".")
- if idx > len(hostLabels) {
+ if idx >= len(hostLabels) {
return "", true
}
return hostLabels[len(hostLabels)-idx-1], true
diff --git a/modules/caddyhttp/replacer_test.go b/modules/caddyhttp/replacer_test.go
index bc18c5a..49167ee 100644
--- a/modules/caddyhttp/replacer_test.go
+++ b/modules/caddyhttp/replacer_test.go
@@ -108,6 +108,10 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
expect: "example",
},
{
+ input: "{http.request.host.labels.2}",
+ expect: "<empty>",
+ },
+ {
input: "{http.request.tls.cipher_suite}",
expect: "TLS_AES_256_GCM_SHA384",
},