[wrangler][vite-plugin] Print QR code for tunnel URLs

[MattieTK]

Print a scannable QR code alongside the tunnel URL when sharing via Cloudflare Tunnel, making it easy to open the tunnel on a mobile device.

When a tunnel starts (via wrangler dev --tunnel or the Vite plugin with tunnel: true), a compact QR code is printed to the terminal using Unicode block characters. Generation is best-effort -- if it fails, the tunnel URL is still displayed as before.

Changes:

• packages/wrangler/src/tunnel/dev.ts -- new printQrCode method on TunnelManager
• packages/vite-plugin-cloudflare/src/plugins/tunnel.ts -- QR code in patchPrintUrls
• New dependency: qr (0-dep, MIT/Apache-2.0, bundled into both packages)

---

• Tests
  • Tests included/updated
  • Automated tests not possible - manual testing has been completed as follows:
  • Additional testing not necessary because: QR generation is wrapped in try/catch and is additive display-only behaviour; the qr library has its own extensive test suite
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: this is a cosmetic enhancement to existing tunnel output with no new configuration options

[changeset-bot]

🦋 Changeset detected

Latest commit: 229552b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
wrangler	Minor
@cloudflare/vite-plugin	Minor
@cloudflare/vitest-pool-workers	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[pkg-pr-new]

create-cloudflare

npm i https://pkg.pr.new/create-cloudflare@13989

@cloudflare/kv-asset-handler

npm i https://pkg.pr.new/@cloudflare/kv-asset-handler@13989

miniflare

npm i https://pkg.pr.new/miniflare@13989

@cloudflare/pages-shared

npm i https://pkg.pr.new/@cloudflare/pages-shared@13989

@cloudflare/unenv-preset

npm i https://pkg.pr.new/@cloudflare/unenv-preset@13989

@cloudflare/vite-plugin

npm i https://pkg.pr.new/@cloudflare/vite-plugin@13989

@cloudflare/vitest-pool-workers

npm i https://pkg.pr.new/@cloudflare/vitest-pool-workers@13989

@cloudflare/workers-editor-shared

npm i https://pkg.pr.new/@cloudflare/workers-editor-shared@13989

@cloudflare/workers-utils

npm i https://pkg.pr.new/@cloudflare/workers-utils@13989

wrangler

npm i https://pkg.pr.new/wrangler@13989

commit: 229552b

[github-actions]

✅ All changesets look good

[workers-devprod]

Codeowners approval required for this PR:

• ✅ @cloudflare/wrangler

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 2 additional findings.

[edmundhung]

Confirmed and verified both working as expected 👍🏼

[workers-devprod]

Codeowners reviews satisfied