docs: Update Nginx Reverse Proxy Configuration for Improved iOS Compatibility

[MFYDev]

Introduction

I encountered an issue with the current Nginx reverse proxy configuration in the documentation, which prevented videos from playing on iOS clients. After troubleshooting, I found a solution and would like to propose an update to improve the documentation.

Issue Description

Related issue: #10777

The initial configuration provided in the documentation did not support video playback on iOS devices. The videos failed to load, and I did not receive any specific error messages in the logs.

Solution

The following changes resolved the issue:

• Disabled proxy_buffering to avoid issues with video streaming.
• Adjusted buffer sizes with proxy_buffer_size, proxy_busy_buffers_size, and proxy_buffers.
• Enabled proxy_force_ranges to ensure proper handling of byte-range requests, which is crucial for video playback.
• Extended timeouts (proxy_send_timeout, proxy_read_timeout, client_body_timeout, keepalive_timeout) to prevent interruptions during large file uploads or long video streams.

Conclusion

This updated configuration resolves the issue of video playback on iOS clients and improves overall performance. I encourage the maintainers to review and test these changes and consider updating the documentation to assist others who might face similar challenges.

Thank you for your consideration.

[bo0tzz]

afaik with proxy_buffering off; none of the other proxy_ directives have any effect.

[bo0tzz]

What I'm saying is that with buffering off, there's no need to set any buffer sizes since those aren't used.

[MFYDev]

You are right, but what happened to me is also weird. I just tested on my own webserver, with only proxy_buffering off; The video content directly went blank on my IOS client, and adding the rest of it make the video can play again.

[MFYDev]

I tried to investigated in my nginx, none of my nginx config set proxy buffers anywhere else. So I myself don't know why it is behaving like this, I will follow your advice. If it has too much confusion I can drop the PR