`wrangler deploy` often fails with `fetch` errors

[leebenson]

What versions & operating system are you using?

System:
OS: macOS 26.1
CPU: (14) arm64 Apple M4 Max
Memory: 1.20 GB / 36.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 24.7.0 - /Users/leebenson/.nvm/versions/node/v24.7.0/bin/node
npm: 11.5.1 - /Users/leebenson/.nvm/versions/node/v24.7.0/bin/npm
pnpm: 10.13.1 - /opt/homebrew/bin/pnpm
bun: 1.3.2 - /Users/leebenson/.bun/bin/bun
Watchman: 2025.06.23.00 - /opt/homebrew/bin/watchman
npmPackages:
@cloudflare/vite-plugin: catalog: => 1.13.13
wrangler: catalog: => 4.49.1

Please provide a link to a minimal reproduction

n/a

Describe the Bug

I've hit this frequently over the past 2 weeks.

Attempting to deploy a worker with wrangler deploy often results in errors such as:

TypeError: fetch failed
    at fetch (/Volumes/dev/gh/node_modules/.bun/wrangler@4.49.1+80763641bee7cf20/node_modules/wrangler/wrangler-dist/cli.js:31913:17)
    at async performApiFetch (/Volumes/dev/gh/node_modules/.bun/wrangler@4.49.1+80763641bee7cf20/node_modules/wrangler/wrangler-dist/cli.js:119401:10)
    at async fetchInternal (/Volumes/dev/gh/node_modules/.bun/wrangler@4.49.1+80763641bee7cf20/node_modules/wrangler/wrangler-dist/cli.js:119421:20)
    at async fetchResult (/Volumes/dev/gh/node_modules/.bun/wrangler@4.49.1+80763641bee7cf20/node_modules/wrangler/wrangler-dist/cli.js:119613:47)
    at async doUpload (/Volumes/dev/gh/node_modules/.bun/wrangler@4.49.1+80763641bee7cf20/node_modules/wrangler/wrangler-dist/cli.js:248974:25)
    at async /Volumes/dev/gh/node_modules/.bun/wrangler@4.49.1+80763641bee7cf20/node_modules/wrangler/wrangler-dist/cli.js:126108:30

This number of assets uploaded in this particular project is usually around 100.

It fails on different files each time, typically after successfully uploading around half of them.

I have been able to repro this with other team members in different geographies, so I suspect it's unlikely to be related to my own connection or the specific API intake.

Please provide any relevant error logs

No response

[dario-piotrowicz]

Hi @leebenson 👋

Thanks for the issue, I just tried reproducing it by creating a simple worker with more than 100 (medium size) asset files and I couldn't reproduce it.

Are you still experiencing the issue?

if you are, if you could share a minimal reproduction here that would be ideal, although I suspect that that might not be possible, if it isn't could you run wrangler deploy with WRANGLER_LOG=debug and your project and share here the output? (PS: also if it's not too noisy and it doesn't contain, or you can remove, informations you don't want to share, if you could also set WRANGLER_LOG_SANITIZE=false that would be even better).