0d5bf65feb
This pull request completely replaces our old page loader with a brand new route loader. Our existing comprehensive test suite means I did not need to add a bunch of tests. I did add them where behavior was added or fixed. Summary of the changes: - Eagerly evaluates prefetched pages in browser idle time (speeds up transitions) - Router is **no longer frozen** indefinitely if the Build Manifest never arrives - Router is **no longer frozen** indefinitely if a page fails to bootstrap - New `withFuture` utility instead of ad-hoc deduping per resource - Prefetching is now delayed until browser idle time to not impact TTI - Browsers without `prefetch` now fall back to eager evaluation instead of using `preload` - We're now ready to serve non-static assets **with `no-store` without breaking prefetching** - **Application can now hydrate without fetching CSS assets—this is a huge performance win that was previously blocking hydration** --- The minor size increase here is unfortunate, but we have to incur it for correctness. --- Fixes #18389 Fixes #18642 |
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| .. | ||
| components | ||
| pages | ||
| public | ||
| test | ||
| next.config.js | ||
| warning-loader.js | ||