perf: lazy-load lottie animations in Inbox and Screensaver#17606
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pauldambra wants to merge 1 commit into
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perf: lazy-load lottie animations in Inbox and Screensaver#17606pauldambra wants to merge 1 commit into
pauldambra wants to merge 1 commit into
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lottie-web (~600 KiB) was eager via two paths: Inbox (lottie-react) and the Screensaver (react-lottie) — both part of the always-loaded OS chrome. Switch both to the repo's client-only React.lazy pattern (HedgehogMode style) behind a Suspense boundary, so lottie loads only when those surfaces actually render. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Deploy preview
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Contributor
Bundle reportTotal JS (gzip)6.26 MiB (-44.4 KiB / -0.7%) Largest changed named chunks
Eager graph (static-import closure per entrypoint)
Largest modules in the
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| Module | Size |
|---|---|
css ./node_modules/.pnpm/css-loader@5.2.7_webpack@5.101.3/node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[8].oneOf[1].use[1]!./node_modules/.pnpm/postcss-loader@4.3.0_postcss@8.5.6_webpack@5.101.3/node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[8].oneOf[1].use[2]!./src/styles/global.css |
710.0 KiB |
./src/components/Stickers/Stickers.tsx |
696.4 KiB |
./node_modules/.pnpm/@radix-ui+react-icons@1.3.2_react@18.3.1/node_modules/@radix-ui/react-icons/dist/react-icons.esm.js |
481.4 KiB |
./node_modules/.pnpm/@codemirror+view@6.38.2/node_modules/@codemirror/view/dist/index.js |
458.1 KiB |
./.cache/caches/gatsby-plugin-mdx/mdx-scopes-dir/31a094f140f119e73085d847ae81b99b.js + 2 modules |
435.9 KiB |
./node_modules/.pnpm/rehype-raw@7.0.0/node_modules/rehype-raw/lib/index.js + 29 modules |
395.1 KiB |
./node_modules/.pnpm/@posthog+icons@0.36.6_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@posthog/icons/dist/posthog-icons.cjs.js |
364.8 KiB |
./src/hooks/useCustomers.tsx + 55 modules |
358.4 KiB |
./node_modules/.pnpm/@posthog+icons@0.36.6_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@posthog/icons/dist/posthog-icons.es.js |
354.8 KiB |
./node_modules/.pnpm/react-markdown@8.0.7_@types+react@16.14.66_react@18.3.1/node_modules/react-markdown/lib/react-markdown.js + 88 modules |
351.4 KiB |
./node_modules/.pnpm/jspdf@3.0.2/node_modules/jspdf/dist/jspdf.es.min.js |
334.1 KiB |
./node_modules/.pnpm/cloudinary-core@2.14.0_lodash@4.17.21/node_modules/cloudinary-core/cloudinary-core.js |
281.9 KiB |
./node_modules/.pnpm/@codesandbox+sandpack-react@2.20.0_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@codesandbox/sandpack-react/dist/index.mjs |
266.6 KiB |
./src/components/ProductComparisonTable/index.tsx + 114 modules |
264.0 KiB |
./node_modules/.pnpm/d3@7.9.0/node_modules/d3/src/index.js + 208 modules |
247.4 KiB |
Eager-graph budgets are report-only until a baseline is established. Sizes are gzip of public/**/*.js; eager size is webpack module source bytes.
This was referenced Jun 13, 2026
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this approach worked nicely in the app
robot recorded what it believes is the affected page on the preview link
Changes
Third bundle-split in the ratchet.
lottie-web(~600 KiB) shipped on every page via two always-loaded OS-chrome surfaces:Inbox->lottie-react(hourglass loading animations)Screensaver->react-lottie(logo animation)(AboutHero and CommunityCTA also use
react-lottiebut are page-split, so they don't keep it eager.)Both now use the repo's client-only
React.lazypattern (same asHedgehogMode) behind aSuspense fallback={null}, so lottie loads only when those surfaces render.Please sanity-check on the preview: the Inbox loading spinner (open the inbox while questions load) and the Screensaver animation (display options -> enable screensaver).
Expected impact
lottie-web (~600 KiB) drops out of the
appeager closure. Stacked on the amcharts PR; the preview eager-graph comment shows the cumulative reduction.Checklist
🤖 Agent context
Stack: #17603 (checker) <- #17604 (mapbox, -1.62 MiB) <- #17605 (amcharts, -2.16 MiB) <- this (lottie). Both lottie wrappers (lottie-react, react-lottie) bundle lottie-web — a dedup opportunity for later. Remaining eager candidates: @mdxeditor/CodeMirror (OSTable), jspdf (OSChrome HeaderBar), Stickers (MDX scope), @radix-ui/react-icons.