[web_server] Guard icon JSON field with USE_ENTITY_ICON

Skip emitting the "icon" key in set_json_id() when USE_ENTITY_ICON is not defined. This avoids the ArduinoJson .set() call overhead and sending empty "icon":"" in every JSON response for builds without icons.
2026-02-12 10:42:03 +00:00 · 2026-02-11 22:18:51 -06:00
1 changed files with 2 additions and 0 deletions
--- a/esphome/components/web_server/web_server.cpp
+++ b/esphome/components/web_server/web_server.cpp
@@ -557,7 +557,9 @@ static void set_json_id(JsonObject &root, EntityBase *obj, const char *prefix, J
      root[ESPHOME_F("device")] = device_name;
    }
 #endif
+#ifdef USE_ENTITY_ICON
    root[ESPHOME_F("icon")] = obj->get_icon_ref();
+#endif
    root[ESPHOME_F("entity_category")] = obj->get_entity_category();
    bool is_disabled = obj->is_disabled_by_default();
    if (is_disabled)