const lenientDeclareModuleId = function()

in polymer/lib/utils/boot_bridge.js [47:53]


  const lenientDeclareModuleId = function(id) {
    if (!goog.isInEs6ModuleLoader_()) {
      // The real declareNamespace would throw. Don't do that.
      return;
    }
    return realDeclareModuleId(id);
  };