Add back request heades modifiers as prime app

bubble-server/src/main/java/bubble/service/stream/StandardAppPrimerService.java

@@ -177,6 +177,7 @@ public class StandardAppPrimerService implements AppPrimerService {
                 final Set<String> whiteListDomains = new HashSet<>();
                 final Set<String> filterDomains = new HashSet<>();
                 final Set<String> flexExcludeDomains = new HashSet<>();
+                final Set<String> requestHeaderModifiers = new HashSet<>();
 
                 boolean areAllSetsEmpty = true;
                 for (AppMatcher matcher : matchers) {
@@ -218,6 +219,16 @@ public class StandardAppPrimerService implements AppPrimerService {
                         areAllSetsEmpty = areAllSetsEmpty && empty(filters);
                     }
 
+                    final Set<String> modifiers = appRuleDriver.getPrimedResponseHeaderModifiers();
+                    if (empty(modifiers)) {
+                        log.debug("_primeApp: no responseHeaderModifiers for device/app/rule/matcher: "
+                                  + device.getName() + "/" + app.getName() + "/" + rule.getName() + "/"
+                                  + matcher.getName());
+                    } else {
+                        requestHeaderModifiers.addAll(modifiers);
+                        areAllSetsEmpty = areAllSetsEmpty && empty(modifiers);
+                    }
+
                     if (account.isFirstAdmin() && flexDomains == null) {
                         final Set<String> flexes = appRuleDriver.getPrimedFlexDomains();
                         if (empty(flexes)) {
@@ -261,6 +272,11 @@ public class StandardAppPrimerService implements AppPrimerService {
                         AppRuleDriver.defineRedisFilterSet(redis, ip, app.getName() + ":" + app.getUuid(),
                                                            filterDomains.toArray(String[]::new));
                     }
+                    if (!empty(requestHeaderModifiers)) {
+                        AppRuleDriver.defineRedisResponseHeaderModifiersSet(
+                                redis, ip, app.getName() + ":" + app.getUuid(),
+                                requestHeaderModifiers.toArray(String[]::new));
+                    }
                     if (account.isFirstAdmin()) {
                         if (!empty(flexDomains)) {
                             if (!empty(flexExcludeDomains)) flexDomains.removeAll(flexExcludeDomains);