One-page: Pure ESM

[ryan-roemer]

Hey! What do you know? importmaps now mostly work! Which means we can update our browser one-page version to use just ESM.

Fixes:

• Allow more tolerant react-syntax-highligher import behavior to better accommodate both CJS and ESM.

Notes:

• No more UMD needed! 🎉
• BUT, first load if not cached is 2010-era requirejs-in-dev-mode slow! 🐢
• react* libs of course don't have ESM versions. And lots of other libraries don't play nice. So instead we use esm.sh which adjusts for ESM things
• We have to manually override react to 18 (since some transitive deps bring in 17)

Future notes:

• If this works we'll want to ticket out (1) removing UMD and (2) a major release.

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Name	Status	Preview	Comments	Updated (UTC)
spectacle-docs-website	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 16, 2023 11:51pm

[ryan-roemer]

STATUS: Hold up. Something's rebroken with that prism import...

[ryan-roemer]

Oh, haha -- we need to publish my fix first for a preview to work. All good to review @carloskelly13 @gksander !

[carloskelly13]

Hitting the local mjs build reveals your theme fix works!

[carloskelly13]

This is great. We're going to have to keep the React versions inline. I wonder if a future version can fill in a unified React version number for both the import, React DOM, and all the libraries that do a dep on it.