diff --git a/backend/controller/ingress/alias.go b/backend/controller/ingress/alias.go
index 8f678d9aa1..b73f92c9f9 100644
--- a/backend/controller/ingress/alias.go
+++ b/backend/controller/ingress/alias.go
@@ -2,6 +2,7 @@ package ingress
 
 import (
 	"fmt"
+	"reflect"
 
 	"github.com/TBD54566975/ftl/backend/schema"
 )
@@ -25,11 +26,14 @@ func transformAliasedFields(sch *schema.Schema, t schema.Type, obj any, aliaser
 		}
 
 	case *schema.Array:
-		a, ok := obj.([]any)
-		if !ok {
+		// Using reflection here because not all arrays are type any.
+		v := reflect.ValueOf(obj)
+		if v.Kind() != reflect.Slice {
 			return fmt.Errorf("expected array, got %T", obj)
 		}
-		for _, elem := range a {
+
+		for i := 0; i < v.Len(); i++ {
+			elem := v.Index(i).Interface()
 			if err := transformAliasedFields(sch, t.Element, elem, aliaser); err != nil {
 				return err
 			}
diff --git a/backend/controller/ingress/request.go b/backend/controller/ingress/request.go
index 6d243a49db..4d96720ad1 100644
--- a/backend/controller/ingress/request.go
+++ b/backend/controller/ingress/request.go
@@ -31,7 +31,7 @@ func BuildRequestBody(route *dal.IngressRoute, r *http.Request, sch *schema.Sche
 	var requestMap map[string]any
 
 	if metadata, ok := verb.GetMetadataIngress().Get(); ok && metadata.Type == "http" {
-		pathParameters := map[string]string{}
+		pathParameters := map[string]any{}
 		matchSegments(route.Path, r.URL.Path, func(segment, value string) {
 			pathParameters[segment] = value
 		})
@@ -41,12 +41,22 @@ func BuildRequestBody(route *dal.IngressRoute, r *http.Request, sch *schema.Sche
 			return nil, err
 		}
 
+		queryMap := make(map[string]any)
+		for key, values := range r.URL.Query() {
+			queryMap[key] = values
+		}
+
+		headerMap := make(map[string]any)
+		for key, values := range r.Header {
+			headerMap[key] = values
+		}
+
 		requestMap = map[string]any{}
 		requestMap["method"] = r.Method
 		requestMap["path"] = r.URL.Path
 		requestMap["pathParameters"] = pathParameters
-		requestMap["query"] = r.URL.Query()
-		requestMap["headers"] = r.Header
+		requestMap["query"] = queryMap
+		requestMap["headers"] = headerMap
 		requestMap["body"] = httpRequestBody
 	} else {
 		var err error
diff --git a/integration/integration_test.go b/integration/integration_test.go
index a0dcf8749f..24a59bb36f 100644
--- a/integration/integration_test.go
+++ b/integration/integration_test.go
@@ -440,7 +440,6 @@ func httpCall(rd runtimeData, method string, path string, body []byte, onRespons
 
 		bodyBytes, err := io.ReadAll(resp.Body)
 		assert.NoError(t, err)
-		fmt.Printf("%s\n", bodyBytes)
 
 		var resBody map[string]any
 		// ignore the error here since some responses are just `[]byte`.