ResultadosDigitais/matrix

WebSocket handshake: Unexpected response code: 400

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#231 opened on Mar 21, 2020

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environment-deploygood first issuekind: bug

Description

Description

Browser / Javascript Console Error: morpheus-526f73e90268c8a4ff10.js:54 WebSocket connection to 'wss://matrix...........&transport=websocket&sid=....... failed: Error during WebSocket handshake: Unexpected response code: 400

Steps to Reproduce

  1. Deploy matrix to GCP Cloud Run
  2. Use matrix
  3. See Browser Console Log

Possible Solution

Have you tested matrix in another GCP (App Engine, GKE) or AWS environment? Any steps or concerns about deployment?

Contributor guide

Tech stack
javascriptnodejs
Domain
backendcloud
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
basic WebSocket knowledgeGCP Cloud Run understanding
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
The issue reports a WebSocket handshake failure when deploying the matrix app to Google Cloud Run. The user suspects Cloud Run does not support WebSocket connections, citing external FAQs. To resolve, investigate whether Cloud Run now supports WebSockets, check the app's WebSocket configuration, and consider alternative deployment options like App Engine or GKE. Refer to the linked Cloud Run FAQ and issues page for details.