© 2026 Hedgehog Software, LLC
Twitter
GitHub
Discord
System
Light
Dark
More
Communities
Docs
About
Terms
Privacy
Search
Star
Feedback
Setup for Free
CD
Cloudflare Developers
•
2y ago
•
4 replies
Gary Chan
Uncaught Error: No such module " node:buffe
When I try to create a worker according to
https://developers.cloudflare.com/workers/examples/signing-requests/
,I get
"Uncaught Error
: No such module
"
n
o
d
e
:buffer
"
. imported from
"worker
.js
"
(Code
: 10021
)
"
.
Cloudflare Docs
Sign requests · Cloudflare Workers docs
This example Worker makes use of the Node
.js Buffer API
, which is available as part of the Worker
’s runtime Node
.js compatibility mode
. To run this
…
Cloudflare Developers
Join
Welcome to the official Cloudflare Developers server. Here you can ask for help and stay updated with the latest news
85,042
Members
View on Discord
Resources
ModelContextProtocol
ModelContextProtocol
MCP Server
Similar Threads
Was this page helpful?
Yes
No
Recent Announcements
Similar Threads
Uncaught Error: No such module "node:http2".
CD
Cloudflare Developers / workers-and-pages-help
5mo ago
Uncaught Error: No such module "node:process"
CD
Cloudflare Developers / workers-and-pages-help
10mo ago
nodejs compat mode problem: Uncaught Error: No such module "node:module"
CD
Cloudflare Developers / workers-and-pages-help
2y ago
Uncaught Error: No such module "node:buffer". imported from "worker.js" (Code: 10021)
CD
Cloudflare Developers / workers-and-pages-help
2y ago