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-rw-r--r--modules/caddyhttp/matchers.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/caddyhttp/matchers.go b/modules/caddyhttp/matchers.go
index 9b127db..1a49b3c 100644
--- a/modules/caddyhttp/matchers.go
+++ b/modules/caddyhttp/matchers.go
@@ -667,7 +667,7 @@ func (MatchProtocol) CaddyModule() caddy.ModuleInfo {
func (m MatchProtocol) Match(r *http.Request) bool {
switch string(m) {
case "grpc":
- return r.Header.Get("content-type") == "application/grpc"
+ return strings.HasPrefix(r.Header.Get("content-type"), "application/grpc")
case "https":
return r.TLS != nil
case "http":