4c5ea07aff
Our proxy configuration was historically incorrect, due to which a lot of customers have that in their setups. As a result, strictly following the websocket RFC results in a breaking change. For now, we transparently upgrade the version header to 1.1, if we detect 1.0. If a client was sending 1.0, it wouldn't have worked anyways because persistent connections were introduced from 1.1 onwards. https://mattermost.atlassian.net/browse/MM-33836 ```release-note WebSocket handshakes done with HTTP version lower than 1.1 will result in a warning, and the server will transparently upgrade the version to 1.1 to comply with the websocket RFC. This is done to work around incorrect nginx (and other proxy) configs that do not set the proxy_http_version directive to 1.1. This facility will be removed in a future Mattermost version and it is strongly recommended to fix the proxy configuration to correctly use the websocket protocol. ``` Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
Mattermost is an open source, private cloud, Slack-alternative from https://mattermost.com.
It's written in Golang and React and runs as a single Linux binary with MySQL or PostgreSQL. Every month on the 16th a new compiled version is released under an MIT license.
Table of Contents
- Try out Mattermost
- Deploy on Heroku
- Deploy on a Cloud Platform via Bitnami
- Install on Your Own Machine
- Native Mobile and Desktop Apps
- Get Security Bulletins
- Get Involved
- Learn More
- Get the Latest News
- Contributing
Try out Mattermost
- Join the Mattermost Contributor's server to join community discussions about contributions, development and more
- Get started with Mattermost Cloud to try out Mattermost
Deploy on Heroku
Note: Heroku preview does not include email or persistent storage
Deploy on a Cloud Platform via Bitnami
Auto-deploy Mattermost to Amazon Web Services, Azure, Google Cloud Platform, or Oracle Cloud Platform via Bitnami.
Install on Your Own Machine
- One-line Docker Preview
- Developer Machine Setup
- Production Install Guides using Linux Binary
- Production Docker Install
Native Mobile and Desktop Apps
In addition to the web interface, you can also download Mattermost clients for Android, iOS, Windows PC, Mac OSX, and Linux.
Get Security Bulletins
Receive notifications of critical security updates. The sophistication of online attackers is perpetually increasing. If you are deploying Mattermost it is highly recommended you subscribe to the Mattermost Security Bulletin mailing list for updates on critical security releases.
Get Involved
- Contribute Code
- Find "Help Wanted" projects
- Join Developer Discussion on a Mattermost Server for contributors
- File Bugs
- Share Feature Ideas
- Get Troubleshooting Help
- Help translate Mattermost
Learn More
- API Options - webhooks, slash commands, drivers and web service
- See who's using Mattermost
- Browse over 700 Mattermost integrations
License
See the LICENSE file for license rights and limitations.
Get the Latest News
- Twitter - Follow Mattermost.
- Blog - Get the latest updates from the Mattermost blog.
- Facebook - Follow Mattermost.
- LinkedIn - Follow Mattermost.
- Email - Subscribe to our newsletter (1 or 2 per month).
- Mattermost - Join the ~contributors channel on the Mattermost Community Server.
- IRC - Join the #matterbridge channel on Freenode (thanks to matterircd).
Contributing
Please see CONTRIBUTING.md.
Any other questions, mail us at info@mattermost.com. We’d love to meet you!