[BUG] Frontend for plugin fails to load if network status changes while a plugin's frontend is being loaded

[eXhumer]

Please confirm

• I have searched existing issues
• This issue is not a duplicate of an existing one
• I have checked the common issues section in the readme file
• I have attached logs to this bug report (failure to include logs will mean your issue may not be responded to).

Bug Report Description

When the frontend for a plugin is being loaded and Steam Deck's network status changes, it will fail to load the frontend until you reboot.

This is hard to reproduce on demand as it only happens if the Steam Deck's network status changes while a plugin's frontend is being loaded, but enough reboots should make one or many plugins fail if the plugin was being loaded around the time network status changes while that plugin is being loaded.

Additional comment from @PartyWumpus in Discord, where I first reported the issue.

Expected Behaviour

No plugin loading issues while network status changes during plugin load time.

SteamOS version

SteamOS 3.6.19 Stable

Selected Update Channel

Stable

Decky Loader Version

v3.0.4-pre1

Plugin Info

1. MagicPods (1.0.7)
2. Storage Cleaner (1.4.0)
3. Controller Tools (2.0.0)
4. Wine Cellar (0.1.6)
5. TabMaster (2.7.2)
6. CSS Loader (2.1.2)
7. Decky Recorder (0.4.1)
8. MusicControl (1.1.6)
9. PowerTools (2.0.3)
10. SteamGridDB (1.5.1-loaderv2)
11. steamdeck-input-disabler (1.0.2)
12. Volume Mixer (1.2.1-1)
13. CheatDeck (0.4.0)
14. Shotty (0.1.0)
15. ScreenshotUpdater (0.0.3)

Have you modified the read-only filesystem at any point?

No

Backend Logs

deckylog.txt

Used journalctl -b -1 -u plugin_loader.service > deckylog.txt to generate deckylog.txt as it happened on previous boot.

Frontend Logs

cef_log.previous.txt
cef_log.txt

cef_log.previous.txt contains the errors, I rebooted to make sure the plugins work as expected on reboot.

[PartyWumpus]

This is likely triggered on both legacy and esmodule plugins, so here

decky-loader/frontend/src/plugin-loader.tsx

Line 425 in 43f2232

const plugin_exports = await import(`http://127.0.0.1:1337/plugins/${name}/dist/index.js?t=${Date.now()}`);

and here

decky-loader/frontend/src/plugin-loader.tsx

Line 437 in 43f2232

let res = await fetch(`http://127.0.0.1:1337/plugins/${name}/frontend_bundle`, {

I think the best solution is just retrying imports a few times if they failed.