@endo/lockdown

We often need to upgrade a JavaScript environment to HardenedJS as a side effect of importing a module, so that later modules can rely on the hardened environment. The @endo/lockdown package simply ensures that SES has both initialized and locked down the environment.

import '@endo/lockdown'
import 'hardened-modules...';
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The HardenedJS environment is a subset of the Endo environment. Use @endo/init for a more comprehensive upgrade.