What does it do?

• adds the frontend code needed to react to events dispatched from the admin to let our site know that data was updated in Strapi, and therefore we need to refetch the route data
• updates env variables. The STRAPI_ADMIN prefix from PREVIEW_SECRET and CLIENT_URL environment variables, which are only used for preview. This prefix made the vars available on the frontend, but because preview does the URL generation in the backend, it was not necessary. It would still work without this change but I think launchpad should show best practices.
• deletes the "PreviewButton" code. This was a custom extension built by Alex for demo purposes before Preview was built natively. Now that preview is available for real, it's not required and could only create confusion
• ...a bunch of prettier autofixes too unfortunately. I recommend setting up prettier in this repo with Husky so it gets applied on every commit, otherwise we'll keep getting noisy diffs on PRs

Why is it needed?

The goal is to showcase Advanced Preview functionality (only works with a license).

How to test it?

Use a STRAPI_LICENSE with EE or growth plan associated.

Open the preview page for an entry. See the side editor on the left. Make an update with it and save, you should see the changes reflected immediately in the iframe.

Some additional things to check:

• Strapi project uuid is "LAUNCHPAD". strapi/packages.json.
• If you updated content, make sure to create a new export in the strapi/data folder and update the strapi/packages.json seed command if necessary.
• Strapi version is the latest possible.