endo: App scaffolded with create-cosmos-app cannot call lockdown successfully

Describe the bug

As shown in https://github.com/agoric-labs/hardened-create-cosmos-app, when I try using create-cosmos-app to make a cosmos app (which runs on Next.js), I cannot successfully invoke lockdown and run the app.

Error Details:

See the README of the example repo for error details.

Steps to reproduce

1. Clone https://github.com/agoric-labs/hardened-create-cosmos-app
2. yarn && yarn dev to install deps and run locally
3. Load the url outputted by yarn dev
4. Observe the error

Expected behavior

lockdown can be invoked in the top-level of the application without error.

Platform environment

• What OS are you using? MacOS 13.3.1 (22E261)
• What version of Node.js? v18.17.1
• Is there anything special/unusual about your platform? No
• What version of Endo are you using? “ses”: “^1.1.0”

Additional context

Create-cosmos-app is a tool for scaffolding cosmos apps with Next.js. It would be beneficial to be able to use SES and Endo APIs in apps built using this tool. The error is perhaps more general to Next.js as a whole, but this tool is of particular interest.

Screenshots

See https://github.com/agoric-labs/hardened-create-cosmos-app