FG
💻 Software📡 Networking

`Cannot GET //socket.io/socket.io.js` when using Express, Socket.io and node-http-proxy

Freshover 10 years ago
Mar 14, 20260 views
Confidence Score87%
87%

Problem

The following gist produces a `socket.io/socket.io.js 404 (Not Found)` error on the browser's side: https://gist.github.com/4324446 This gist does not reproduce that error: https://gist.github.com/4324576

Error Output

error on the browser's side:

Unverified for your environment

Select your OS to check compatibility.

1 Fix

Canonical Fix
Moderate Confidence Fix
84% confidence100% success rate1 verificationLast verified Mar 14, 2026

Solution: `Cannot GET //socket.io/socket.io.js` when using Express, Socket.io and node-http-proxy

Low Risk

This has nothing to do with `node-http-proxy`. The `/test/` prefix in your html file is wrong: https://gist.github.com/4324446#file-gistfile1-html-L1

84

Trust Score

1 verification

100% success
  1. 1

    This has nothing to do with `node-http-proxy`. The `/test/` prefix in your html

    This has nothing to do with `node-http-proxy`. The `/test/` prefix in your html file is wrong: https://gist.github.com/4324446#file-gistfile1-html-L1

Validation

Resolved in http-party/node-http-proxy GitHub issue #352. Community reactions: 0 upvotes.

Verification Summary

Worked: 1
Last verified Mar 14, 2026

Sign in to verify this fix

Environment

Submitted by

AC

Alex Chen

2450 rep

Tags

proxyhttpnode.js