cloudflare/workers-sdk

⛅️ Home to Wrangler, the CLI for Cloudflare Workers®

Stars: 4.5k
Forks: 1.5k
Open beginner issues: 0
Indexed issues: 275
Avg merge: 3d 8h
Merged PRs (30d): 187

Dominant language: TypeScript
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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267 open issues indexed

Queue producer bindings silently ignore `remote: true` in `wrangler dev` Open

feature:remote-bindings package:miniflare product:queues

cloudflare/workers-sdk#13727 · 4 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
create-cloudflare v2.68.0 parse error Open

package:c3

cloudflare/workers-sdk#13799 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
triggers.crons silently dropped when deploying with --dispatch-namespace (Workers for Platforms) Open

api package:wrangler product:workers-for-platforms

cloudflare/workers-sdk#13840 · 1 comment · 1 reaction · 1 assignee · Indexed Sep 15, 2026
running docker in docker example with local runtime fails Open

package:miniflare product:containers

cloudflare/workers-sdk#13896 · 1 comment · 0 reactions · 2 assignees · Indexed Sep 15, 2026
wrangler 4.89.1: container app registration for WfP user workers uses non-WfP API endpoint Open

package:wrangler product:containers

cloudflare/workers-sdk#13936 · 1 comment · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Cloudflare and Tanstack vite-plugins not working together Open

package:vite-plugin

cloudflare/workers-sdk#13952 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
🐛 BUG: `wrangler dev` Container's proxy-everything sidecar resets upstream HTTPS to non-handled hosts (despite default `interceptHttps: false`) Open

package:wrangler product:containers

cloudflare/workers-sdk#14056 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
miniflare: WebSocket 101 upgrade response collapses multiple Set-Cookie headers Open

package:miniflare

cloudflare/workers-sdk#14145 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
wrangler types emits mainModule pointing to .svelte-kit build output, breaking svelte-check Open

feature:types package:wrangler

cloudflare/workers-sdk#14181 · 3 comments · 1 reaction · 2 assignees · Indexed Sep 15, 2026
[vitest-pool-workers] No such module "cloudflare:test-internal" with Vitest 4.1.8 and Wrangler 4.98.0 on Windows Open

awaiting-response:cloudflare package:vitest windows

cloudflare/workers-sdk#14214 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Create an emergency revert script for when a release is broken Open

maintenance

cloudflare/workers-sdk#14219 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
wrangler dev (containers): egress proxy-everything sidecars leak — not removed when a container is deleted Open

product:containers upstream:workerd

cloudflare/workers-sdk#14242 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
[vitest-pool-workers]: the module fallback service makes one sequential HTTP round-trip per `node_modules` import — has pre-injecting resolved modules been considered? Open

cloudflare/workers-sdk#14283 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
triggers error messages not displaying Open

error-messaging quick-win

cloudflare/workers-sdk#14288 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Consider migrating from unmaintained blake3-wasm package to a maintained implementation of blake3 Open

package:wrangler

cloudflare/workers-sdk#14301 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Wrangler types fails with SQLITE_IOERR_WRITE on Arch Linux during create-cloudflare scaffold Open

cloudflare/workers-sdk#14344 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
wrangler versions upload --preview-alias rejects raw WORKERS_CI_BRANCH values containing slashes in Workers Builds Open

feature:workers-builds

cloudflare/workers-sdk#14345 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
[wrangler] wrangler types does not support --x-new-config Open

cloudflare/workers-sdk#14396 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Invalid manifest: Manifest path must be URI encoded. Open

api feature:workers-assets package:wrangler

cloudflare/workers-sdk#14461 · 23 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Wrangler pages deploy errors but exits without error code (status 0) Open

package:wrangler

cloudflare/workers-sdk#14584 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
`@cloudflare/vite-plugin`: AWS SDK v3 (≥ @aws-sdk/core 3.974) crashes in dev — subpath-barrel re-exports resolve to `undefined` Open

dependency package:vite-plugin regression

cloudflare/workers-sdk#14600 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
wrangler dev: steady ~5s request cadence phase-locks with kj's 5s keep-alive timeouts — POSTs intermittently fail with 503 "worker restarted mid-request" (worker never restarted) Open

awaiting-response:cloudflare package:miniflare package:wrangler start-dev-worker

cloudflare/workers-sdk#14641 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
wrangler dev rewrites in-Worker Host/Origin/request.url to the routes host in local mode, breaking origin-based auth/CORS checks Open

package:wrangler start-dev-worker

cloudflare/workers-sdk#14683 · 1 comment · 2 reactions · 0 assignees · Indexed Sep 15, 2026
_redirects: dynamic-rule overflow silently drops rest of file; static/dynamic classification is order-dependent and unsurfaced Open

feature:workers-assets package:workers-shared product:pages

cloudflare/workers-sdk#14694 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[vite-plugin/miniflare] workerd heap grows on every server-file edit until OOM, then every request fails with `fetch failed` until manual restart Open

package:vite-plugin

cloudflare/workers-sdk#14701 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
vitest-pool-workers: every rejecting Durable Object RPC leaks one unhandled rejection, even when the test handles it Open

package:vitest

cloudflare/workers-sdk#14736 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[wrangler] sortObjectRecursive throws TypeError on null inside an array Open

awaiting-response:cloudflare

cloudflare/workers-sdk#14826 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Workflows local binding does not emulate deterministic-ID uniqueness: duplicate create()/createBatch() neither throw nor skip, and can double-execute the workflow Open

package:workflows-shared product:workflows

cloudflare/workers-sdk#14836 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
🚀 Feature: support remote Hyperdrive bindings in local dev (raw TCP relay) Open

package:miniflare package:remote-bindings product:hyperdrive

cloudflare/workers-sdk#14842 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[vitest-pool-workers] readD1Migrations() does not read the nested migration layout that migrations_pattern supports Open

package:vitest product:d1

cloudflare/workers-sdk#14866 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
[vite-plugin] Vitest in Browser Mode errors on startup with Cloudflare Vite plugin Open

package:vite-plugin

cloudflare/workers-sdk#14869 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[workers-shared] _redirects/_headers rules with prefix-colliding placeholders are silently dropped Open

feature:workers-assets package:workers-shared product:pages

cloudflare/workers-sdk#14887 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
wrangler dev --local crashes the whole process on a recoverable D1 SQLITE_BUSY under concurrent writes (miniflare 4.20260722; regression from 4.20260714) Open

package:miniflare product:d1 regression

cloudflare/workers-sdk#14916 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
SSR route hangs forever in dev when the route's first render is a notFound() (TanStack Start + @cloudflare/vite-plugin) Open

package:vite-plugin

cloudflare/workers-sdk#14917 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[vitest-pool-workers] Can't resolve TanStack Start's @tanstack/react-start/server-entry when main points at it Open

package:vitest

cloudflare/workers-sdk#14937 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
@cloudflare/vitest-pool-workers segfaults with 3+ real auxiliary Workers wired together (version-independent, minimal synthetic repro does not reproduce) Open

feature:multiworker package:vitest

cloudflare/workers-sdk#14945 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
miniflare: uncaught AssertionError `typeHeader === "Promise"` in #parseAsyncResponse kills vite dev when calling a cross-process Durable Object over the dev registry Open

feature:multiworker needs-reproduction package:miniflare product:durable-objects

cloudflare/workers-sdk#14949 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
@cloudflare/vite-plugin dev mode fails to load worker entry with @react-router/dev's vite dev: "Failed to load url ... Does the file exist?" for a file that exists Open

package:vite-plugin

cloudflare/workers-sdk#14969 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
@cloudflare/vite-plugin - WASM files incorrectly bundled into server assets with TanStack Start + Cloudflare Workers Open

package:vite-plugin

cloudflare/workers-sdk#14972 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
no_bundle:true in generated wrangler.json causes SSR pages to return [object Object] in production Open

package:vite-plugin package:wrangler

cloudflare/workers-sdk#14978 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[vite-plugin] Storybook startup fails during Worker export inspection in middleware mode Open

package:vite-plugin

cloudflare/workers-sdk#14979 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
🐛 BUG: Local Images binding ignores EXIF orientation - photos render sideways in local dev Open

package:miniflare

cloudflare/workers-sdk#15029 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Worker asset upload sometimes silently fails Open

feature:workers-assets package:deploy-helpers

cloudflare/workers-sdk#15060 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
CLOUDFLARE_ENV does not select .env.<environment> / .dev.vars.<environment> files, but --env does Open

package:wrangler

cloudflare/workers-sdk#15068 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
🐛 BUG: concurrent processes race the single-use refresh token (read → exchange → write is unlocked); a lost race kills the refresh chain until interactive re-login Open

cloudflare/workers-sdk#15089 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
[vitest-pool-workers] Module fallback caches a per-file ESM/CommonJS decision under a per-directory key, so dual-format packages are classified by import order Open

package:vitest

cloudflare/workers-sdk#15095 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
wrangler r2 bucket list silently returns only the first 20 buckets, with no cursor, warning, or --per-page Open

package:wrangler product:r2

cloudflare/workers-sdk#15103 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[@cloudflare/vite-plugin] Dev server crashes at startup with `Missing field moduleType` when an Astro 7 project uses @astrojs/vue Open

package:vite-plugin

cloudflare/workers-sdk#15129 · 6 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
[workflows] Local `deleteBatch()` always reports success, so failures are invisible Open

package:workflows-shared product:workflows

cloudflare/workers-sdk#15138 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[workflows] Local `delete()` and `deleteBatch()` have no test coverage Open

package:workflows-shared product:workflows tech-debt

cloudflare/workers-sdk#15139 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

A short digest of beginner-friendly GitHub issues.