Merge pull request #778 from openziti/options_interstitial

Skip Interstitial for HTTP OPTIONS (#777)

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 CHANGE: Update `github.com/openziti/sdk-golang` to version `v0.23.44`. Remove old `github.com/openziti/fabric` dependency, instead pulling in the modern `github.com/openziti/ziti` dependency.
 
+FIX: Bypass interstitial page for HTTP `OPTIONS` method (https://github.com/openziti/zrok/issues/777)
+
 ## v0.4.42
 
 CHANGE: Switch all `Dial` operations made into the OpenZiti overlay to use `DialWithOptions(..., &ziti.DialOptions{ConnectTimeout: 30 * time.Second})`, switching to a 30 second timeout from a 5 second default (https://github.com/openziti/zrok/issues/772)

endpoints/publicProxy/http.go

@@ -158,7 +158,7 @@ func shareHandler(handler http.Handler, pcfg *Config, key []byte, ctx ziti.Conte
 		if shrToken != "" {
 			if svc, found := endpoints.GetRefreshedService(shrToken, ctx); found {
 				if cfg, found := svc.Config[sdk.ZrokProxyConfig]; found {
-					if pcfg.Interstitial != nil && pcfg.Interstitial.Enabled {
+					if r.Method != http.MethodOptions && (pcfg.Interstitial != nil && pcfg.Interstitial.Enabled) {
 						sendInterstitial := true
 						if len(pcfg.Interstitial.UserAgentPrefixes) > 0 {
 							ua := r.Header.Get("User-Agent")