How to load unity webgl in vue3 iframe

[xixioba]

I want to use the same set of projects on the web and desktop at the same time.
I created vue3 project and imported Unity webgl in iframe
npm run serve runs fine

but when i try
yarn run electron:serve

I got stuck when loading webgl.
Belowis the code which I change vue3 example project.

Thanks for any help！

[github-actions]

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