refactor: add error wrapper to campaign banner

[RocioCM]

What

• The Builder no longer renders a blank page when a Contentful campaign banner with rich text is active (currently reproducible on decentraland.zone/builder).
• If a campaign banner ever fails to render for any other reason, the page now simply omits the banner instead of crashing the whole app.

Why

The campaign banner lazily loads @contentful/rich-text-react-renderer, an optional peer dependency of decentraland-ui2 that was never installed. Vite silently bundled the unresolved import as an empty stub module, so rendering any banner with rich text threw documentToReactComponents is not a function and, with no error boundary above it, blanked the entire app.

How to test

1. Open decentraland.zone/builder on a build of master: the page is blank with the TypeError above in the console.
2. On this branch, build and load the app with an active campaign banner: the banner renders its rich text and the rest of the page works.
3. Locally, note the campaign fetch is CORS-blocked for localhost origins, so the banner only appears when the app is served from a decentraland domain (or with CORS disabled). A quick mechanism check without a browser: after npm ci && npx vite build, dist/assets/rich-text-react-renderer*.js is the real ~11KB module on this branch versus a 33-byte empty stub on master.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
builder	Ready	Preview	Aug 24, 2026 2:50pm

[decentraland-bot]

Review Summary

Verdict: ✅ Approve

Clean, well-scoped fix for a production-impacting bug (blank page when a Contentful campaign banner with rich text is active).

Changes Reviewed

File	Assessment
package.json	✅ Correctly adds @contentful/rich-text-react-renderer as a production dependency — this was a missing peer dep of decentraland-ui2 that Vite silently stubbed as an empty module
src/components/CampaignBanner/ (3 files)	✅ Clean error boundary wrapper following project conventions (component + types + barrel export)
src/components/HomePage/HomePage.tsx	✅ Banner replaced with CampaignBanner
src/components/CollectionsPage/CollectionsPage.tsx	✅ Banner replaced with CampaignBanner
package-lock.json	✅ Lock file consistent with dependency addition

Analysis

Root cause fix — Installing the missing @contentful/rich-text-react-renderer peer dependency resolves the documentToReactComponents is not a function TypeError that was crashing the page.

Defense-in-depth — The CampaignBanner error boundary is a good addition: if a campaign banner ever fails to render for any reason, the page degrades gracefully (banner disappears) instead of going blank. Class component usage is correct — React requires class components for error boundaries.

Architecture — Error boundary is placed at the right granularity. A single reusable wrapper (CampaignBanner) avoids duplicating boundary logic at each of the two usage sites. Both existing Banner usage sites in the codebase are covered.

Component structure — The 3-file pattern (.tsx + .types.ts + index.ts) matches the project's established component conventions.

Security

No security issues found. No hardcoded secrets, no XSS surface (only a string id prop is passed), no dangerouslySetInnerHTML, and @contentful/rich-text-react-renderer is a well-maintained package with no known vulnerabilities.

CI Status

Audit, test, and Vercel checks are still running at time of review.

Findings

No P0 or P1 issues. No P2 findings worth flagging — the implementation is minimal and correct.

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Reviewed by Jarvis 🤖 · Requested by RocioCM via GitHub

[coveralls]

Coverage Report for CI Build 32740931716

Coverage remained the same at 53.595%

Details

• Coverage remained the same as the base build.
• Patch coverage: No coverable lines changed in this PR.
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	13244
Covered Lines:	7711
Line Coverage:	58.22%
Relevant Branches:	5991
Covered Branches:	2598
Branch Coverage:	43.37%
Branches in Coverage %:	Yes
Coverage Strength:	37.66 hits per line

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💛 - Coveralls