diff --git a/nginx/ngx_http_js_module.c b/nginx/ngx_http_js_module.c
index b50f84a55..87c3fa13b 100644
--- a/nginx/ngx_http_js_module.c
+++ b/nginx/ngx_http_js_module.c
@@ -276,6 +276,8 @@ static njs_int_t ngx_http_js_server(njs_vm_t *vm, ngx_http_request_t *r,
     njs_value_t *retval);
 
 #if (NJS_HAVE_QUICKJS)
+static JSValue ngx_http_qjs_ext_to_string_tag(JSContext *cx,
+    JSValueConst this_val);
 static JSValue ngx_http_qjs_ext_args(JSContext *cx, JSValueConst this_val);
 static JSValue ngx_http_qjs_ext_done(JSContext *cx, JSValueConst this_val,
     int argc, JSValueConst *argv);
@@ -292,6 +294,8 @@ static JSValue ngx_http_qjs_ext_internal_redirect(JSContext *cx,
     JSValueConst this_val, int argc, JSValueConst *argv);
 static JSValue ngx_http_qjs_ext_log(JSContext *cx, JSValueConst this_val,
     int argc, JSValueConst *argv, int level);
+static JSValue ngx_http_qjs_ext_periodic_to_string_tag(JSContext *cx,
+    JSValueConst this_val);
 static JSValue ngx_http_qjs_ext_periodic_variables(JSContext *cx,
     JSValueConst this_val, int type);
 static JSValue ngx_http_qjs_ext_parent(JSContext *cx, JSValueConst this_val);
@@ -1030,6 +1034,8 @@ static ngx_http_js_entry_t ngx_http_methods[] = {
 #if (NJS_HAVE_QUICKJS)
 
 static const JSCFunctionListEntry ngx_http_qjs_ext_request[] = {
+    JS_CGETSET_DEF("[Symbol.toStringTag]", ngx_http_qjs_ext_to_string_tag,
+                   NULL),
     JS_CGETSET_DEF("args", ngx_http_qjs_ext_args, NULL),
     JS_CFUNC_DEF("done", 0, ngx_http_qjs_ext_done),
     JS_CFUNC_MAGIC_DEF("error", 1, ngx_http_qjs_ext_log, NGX_LOG_ERR),
@@ -1074,6 +1080,8 @@ static const JSCFunctionListEntry ngx_http_qjs_ext_request[] = {
 
 
 static const JSCFunctionListEntry ngx_http_qjs_ext_periodic[] = {
+    JS_CGETSET_DEF("[Symbol.toStringTag]",
+                   ngx_http_qjs_ext_periodic_to_string_tag, NULL),
     JS_CGETSET_MAGIC_DEF("rawVariables", ngx_http_qjs_ext_periodic_variables,
                    NULL, NGX_JS_BUFFER),
     JS_CGETSET_MAGIC_DEF("variables", ngx_http_qjs_ext_periodic_variables,
@@ -4757,6 +4765,14 @@ ngx_http_qjs_query_string_decode(njs_chb_t *chain, const u_char *start,
 }
 
 
+static JSValue
+ngx_http_qjs_ext_to_string_tag(JSContext *cx,
+    JSValueConst this_val)
+{
+    return JS_NewString(cx, "Request");
+}
+
+
 static JSValue
 ngx_http_qjs_ext_args(JSContext *cx, JSValueConst this_val)
 {
@@ -5105,6 +5121,14 @@ ngx_http_qjs_ext_log(JSContext *cx, JSValueConst this_val, int argc,
 }
 
 
+static JSValue
+ngx_http_qjs_ext_periodic_to_string_tag(JSContext *cx,
+    JSValueConst this_val)
+{
+    return JS_NewString(cx, "PeriodicSession");
+}
+
+
 static JSValue
 ngx_http_qjs_ext_periodic_variables(JSContext *cx,
     JSValueConst this_val, int type)
@@ -7378,7 +7402,6 @@ static JSValue
 ngx_http_qjs_request_make(JSContext *cx, ngx_int_t proto_id,
     ngx_http_request_t *r)
 {
-    int                      ret;
     JSValue                  request;
     ngx_http_qjs_request_t  *req;
 
@@ -7387,12 +7410,6 @@ ngx_http_qjs_request_make(JSContext *cx, ngx_int_t proto_id,
         return JS_EXCEPTION;
     }
 
-    ret = qjs_set_to_string_tag(cx, request, "Request");
-    if (ret == -1) {
-        JS_FreeValue(cx, request);
-        return JS_EXCEPTION;
-    }
-
     req = js_malloc(cx, sizeof(ngx_http_qjs_request_t));
     if (req == NULL) {
         return JS_ThrowOutOfMemory(cx);
diff --git a/nginx/ngx_stream_js_module.c b/nginx/ngx_stream_js_module.c
index cb5f07cc1..ec6c5e733 100644
--- a/nginx/ngx_stream_js_module.c
+++ b/nginx/ngx_stream_js_module.c
@@ -145,6 +145,8 @@ static njs_int_t ngx_stream_js_periodic_variables(njs_vm_t *vm,
 
 #if (NJS_HAVE_QUICKJS)
 
+static JSValue ngx_stream_qjs_ext_to_string_tag(JSContext *cx,
+    JSValueConst this_val);
 static JSValue ngx_stream_qjs_ext_done(JSContext *cx, JSValueConst this_val,
     int argc, JSValueConst *argv, int magic);
 static JSValue ngx_stream_qjs_ext_log(JSContext *cx, JSValueConst this_val,
@@ -153,6 +155,8 @@ static JSValue ngx_stream_qjs_ext_on(JSContext *cx, JSValueConst this_val,
     int argc, JSValueConst *argv);
 static JSValue ngx_stream_qjs_ext_off(JSContext *cx, JSValueConst this_val,
     int argc, JSValueConst *argv);
+static JSValue ngx_stream_qjs_ext_periodic_to_string_tag(JSContext *cx,
+    JSValueConst this_val);
 static JSValue ngx_stream_qjs_ext_periodic_variables(JSContext *cx,
     JSValueConst this_val, int type);
 static JSValue ngx_stream_qjs_ext_remote_address(JSContext *cx,
@@ -757,6 +761,8 @@ njs_module_t *njs_stream_js_addon_modules[] = {
 #if (NJS_HAVE_QUICKJS)
 
 static const JSCFunctionListEntry ngx_stream_qjs_ext_session[] = {
+    JS_CGETSET_DEF("[Symbol.toStringTag]", ngx_stream_qjs_ext_to_string_tag,
+                   NULL),
     JS_CFUNC_MAGIC_DEF("allow", 1, ngx_stream_qjs_ext_done, NGX_OK),
     JS_CFUNC_MAGIC_DEF("decline", 1, ngx_stream_qjs_ext_done, -NGX_DECLINED),
     JS_CFUNC_MAGIC_DEF("deny", 1, ngx_stream_qjs_ext_done, -NGX_DONE),
@@ -783,6 +789,8 @@ static const JSCFunctionListEntry ngx_stream_qjs_ext_session[] = {
 
 
 static const JSCFunctionListEntry ngx_stream_qjs_ext_periodic[] = {
+    JS_CGETSET_DEF("[Symbol.toStringTag]",
+                   ngx_stream_qjs_ext_periodic_to_string_tag, NULL),
     JS_CGETSET_MAGIC_DEF("rawVariables", ngx_stream_qjs_ext_periodic_variables,
                    NULL, NGX_JS_BUFFER),
     JS_CGETSET_MAGIC_DEF("variables", ngx_stream_qjs_ext_periodic_variables,
@@ -1963,6 +1971,13 @@ ngx_engine_njs_clone(ngx_js_ctx_t *ctx, ngx_js_loc_conf_t *cf,
 
 #if (NJS_HAVE_QUICKJS)
 
+static JSValue
+ngx_stream_qjs_ext_to_string_tag(JSContext *cx, JSValueConst this_val)
+{
+    return JS_NewString(cx, "Stream Session");
+}
+
+
 static JSValue
 ngx_stream_qjs_ext_done(JSContext *cx, JSValueConst this_val, int argc,
     JSValueConst *argv, int magic)
@@ -2180,6 +2195,14 @@ ngx_stream_qjs_ext_off(JSContext *cx, JSValueConst this_val, int argc,
 }
 
 
+static JSValue
+ngx_stream_qjs_ext_periodic_to_string_tag(JSContext *cx,
+    JSValueConst this_val)
+{
+    return JS_NewString(cx, "PeriodicSession");
+}
+
+
 static JSValue
 ngx_stream_qjs_ext_periodic_variables(JSContext *cx,
     JSValueConst this_val, int type)
@@ -2691,7 +2714,6 @@ static JSValue
 ngx_stream_qjs_session_make(JSContext *cx, ngx_int_t proto_id,
     ngx_stream_session_t *s)
 {
-    int                        ret;
     JSValue                    session;
     ngx_uint_t                 i;
     ngx_stream_qjs_session_t  *ses;
@@ -2701,12 +2723,6 @@ ngx_stream_qjs_session_make(JSContext *cx, ngx_int_t proto_id,
         return JS_EXCEPTION;
     }
 
-    ret = qjs_set_to_string_tag(cx, session, "Stream Session");
-    if (ret == -1) {
-        JS_FreeValue(cx, session);
-        return JS_EXCEPTION;
-    }
-
     ses = js_malloc(cx, sizeof(ngx_stream_qjs_session_t));
     if (ses == NULL) {
         return JS_ThrowOutOfMemory(cx);