Paul Rastoin
17d34a6fe3
## Context The front component source cache introduced in the sandbox refactor was a silent no-op: it ran inside the sandboxed worker (opaque-origin `allow-scripts` iframe), where the `caches` global does not exist. Every render re-fetched the component JS from the network — nothing ever appeared in Cache Storage. ## Change <img width="1580" height="622" alt="image" src="https://github.com/user-attachments/assets/06903abf-b313-4d15-8db4-80950d4bf5ba" /> Moves component source resolution and caching from the worker to the host, where Cache Storage works: - `fetchComponentSource`, `fetchComponentSourceFromNetwork`, `frontComponentCacheStorageService` and `extractComponentChecksumFromUrl` relocated from `remote/worker/utils/` to `host/utils/` (`buildAuthorizationHeadersFromAccessToken` to shared `utils/`, still used by the worker for SDK module fetches) - `FrontComponentWorkerEffect` resolves the source before `thread.imports.render(...)` (with a cancellation guard) and passes `componentSource` in the render payload - `loadFrontComponentModule` no longer fetches: it keeps only sandbox-side work (SDK import rewrite, blob URL creation, `import()`) - New: stale-entry eviction — writing a new checksummed entry deletes older entries of the same `front-components/{id}/` prefix ## Security invariant The host only fetches, hashes and caches the source string — it never executes it. Execution stays exclusively in the opaque-origin worker via blob URL import. SHA-256 checksum verification is kept on both cache read (poisoned-entry guard: any same-origin code can write to Cache Storage) and cache write. ## Out of scope SDK client module caching — follow-up tracked in [twentyhq/core-team-issues#2688](https://github.com/twentyhq/core-team-issues/issues/2688), requires content-addressed URLs (server-side checksum at SDK generation time, exposed via GraphQL and embedded in the `/rest/sdk-client/...` URL), then reuses this same host-side cache path. <!-- This is an auto-generated description by cubic. --> <a href="https://cubic.dev/pr/twentyhq/twenty/pull/22958?utm_source=github" target="_blank" rel="noopener noreferrer" data-no-image-dialog="true"><picture><source media="(prefers-color-scheme: dark)" srcset="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"><source media="(prefers-color-scheme: light)" srcset="https://www.cubic.dev/buttons/review-in-cubic-light.svg"><img alt="Review in cubic" src="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a> <!-- End of auto-generated description by cubic. -->
The #1 Open-Source CRM
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty app:publish --private
See the app development guide for objects, views, agents, and logic functions.
Self-hosting
Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the 
User Guide for product walkthroughs, or the Documentation for developer reference.
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Stack
TypeScript
Nx
NestJS, with BullMQ, 
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Redis
React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
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