From 2755422a29bb2ee013b8b47e4cdfbdbcfae1af7d Mon Sep 17 00:00:00 2001
From: Michael Quigley <michael@quigley.com>
Date: Wed, 24 Jul 2024 10:47:12 -0400
Subject: [PATCH] iteration (#704)

---
 endpoints/publicProxy/http.go | 16 +++++++++-------
 sdk/golang/sdk/config.go      | 11 +++++++----
 2 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/endpoints/publicProxy/http.go b/endpoints/publicProxy/http.go
index d4083724..5e3ba4e8 100644
--- a/endpoints/publicProxy/http.go
+++ b/endpoints/publicProxy/http.go
@@ -159,13 +159,15 @@ func shareHandler(handler http.Handler, pcfg *Config, key []byte, ctx ziti.Conte
 			if svc, found := endpoints.GetRefreshedService(shrToken, ctx); found {
 				if cfg, found := svc.Config[sdk.ZrokProxyConfig]; found {
 					if pcfg.Interstitial {
-						if _, istlFound := cfg["interstitial"]; istlFound {
-							skip := r.Header.Get("skip_zrok_interstitial")
-							_, zrokOkErr := r.Cookie("zrok_interstitial")
-							if skip == "" && zrokOkErr != nil {
-								logrus.Debugf("forcing interstitial for '%v'", r.URL)
-								interstitialUi.WriteInterstitialAnnounce(w)
-								return
+						if v, istlFound := cfg["interstitial"]; istlFound {
+							if istlEnabled, ok := v.(bool); ok && istlEnabled {
+								skip := r.Header.Get("skip_zrok_interstitial")
+								_, zrokOkErr := r.Cookie("zrok_interstitial")
+								if skip == "" && zrokOkErr != nil {
+									logrus.Debugf("forcing interstitial for '%v'", r.URL)
+									interstitialUi.WriteInterstitialAnnounce(w)
+									return
+								}
 							}
 						}
 					}
diff --git a/sdk/golang/sdk/config.go b/sdk/golang/sdk/config.go
index 38748e78..e07000bb 100644
--- a/sdk/golang/sdk/config.go
+++ b/sdk/golang/sdk/config.go
@@ -1,13 +1,16 @@
 package sdk
 
-import "github.com/pkg/errors"
+import (
+	"github.com/pkg/errors"
+)
 
 const ZrokProxyConfig = "zrok.proxy.v1"
 
 type FrontendConfig struct {
-	AuthScheme AuthScheme       `json:"auth_scheme"`
-	BasicAuth  *BasicAuthConfig `json:"basic_auth"`
-	OauthAuth  *OauthConfig     `json:"oauth"`
+	Interstitial bool             `json:"interstitial"`
+	AuthScheme   AuthScheme       `json:"auth_scheme"`
+	BasicAuth    *BasicAuthConfig `json:"basic_auth"`
+	OauthAuth    *OauthConfig     `json:"oauth"`
 }
 
 type BasicAuthConfig struct {