keeps loosing connection

[mbierman]

Bug description

If I am logged in to a machine via WebSSH and I move to other windows for a while and come back the connection looks alive but I can't do anything for quite a long time. It may eventually "come alive". Closing that connection and reopening "fixes" but is tedious.

Screenshots

If applicable, add screenshots to help explain your problem

Steps to reproduce

1. Login to a machine.
2. Move focus for a while to another window
3. Return to WebSSH
4. Error is thrown

Version 20.4 (1000)

[isontheline]

Does network have been paused?

[mbierman]

No change to the network.

[isontheline]

Thanks for your feedback @mbierman I will check

Sometimes it could happen when too many processes are opened and macOS is requiring memory : I'm facing this issue and need to find the root cause

[mbierman]

Memory doesn't seem to be taxed—but I will keep an eye on that when this happens and see if I can reproduce.

[mbierman]

Sorry to be a pain, but any progress? webssh is becoming too unreliable to use since I loose connection in the middle of editing files.

[isontheline]

Under iOS and iPadOS there are a lot of rules that Apple run in order to keep your battery level safe.

If you are using macOS, please provide :

• your operating system version
• your operating system uptime
• your operating system free memory

[mbierman]

The machine I use most often has no battery. It is a macmini.
macOS 13.0.1 (22A400)
22:26 up 11 days, 3:10, 4 users, load averages: 2.72 2.63 1.93

I also have a a macbook pro. I think it happens on this machine too but I don't use it equally so it is hard to say definitively.
1.7 GHz Quad-Core Intel Core i7
13.0.1 (22A400)

I'm not seeing the issue on iOS.

I don't think I have seen this issue on iOS.

[isontheline]

That's perfect @mbierman !

Are you seeing an increase since upgrading to Ventura?

I will make my best efforts to resolve this issue

[isontheline]

Yet I can't reproduce on MacBook Air macOS 13.0.1

[mbierman]

I did not see this issue before Ventura.

[isontheline]

Possible root cause identified : under Ventura (more agressive than before) the WKWebView is reloaded (didNavigationFinish) when the app go to background state but the terminal is in a "zombie" state when coming back to foreground.

If you use tmux you shouldn't see this trouble.

If you don't use tmux, most often the screen will be "dark" (or background color you have choosed). Could you confirm @mbierman ?

I'm searching for a fix.

[isontheline]

For @isontheline work :

• http://github.com/ionic-team/cordova-plugin-ionic-webview/blob/ab7dfc06a7f8780f75800dae4f4217d1956aa7b6/src/ios/CDVWKWebViewEngine.m#L178
• http://gist.github.com/jasonbekolay/dad7c446ae1b02f174dc3eb3a5ea70ee
• http://github.com/xtermjs/xterm.js/blob/master/addons/xterm-addon-serialize/typings/xterm-addon-serialize.d.ts
• http://github.com/xtermjs/xterm.js/tree/master/addons/xterm-addon-serialize
• http://github.com/xtermjs/xterm.js/issues/3364
• http://github.com/cyrus-and/ratty/commit/443da06de8c66870d3ded13d2d35d67ffeaee6d3

[isontheline]

Hello @mbierman 👋

I can't tell any ETA about this issue but I'm strongly working on it.
Will be shipped with 20.7 (or perhaps 20.6) in a few days.

[mbierman]

I appreciate that so much! I will look forward to trying it out.

[isontheline]

A first fix attempt will be released in a few hours.

The fix will be made in two steps :

1. Reloading the terminal view (prevent locking as you are encountering) when killed by macOS (due to aggressive memory pressure management under Ventura)
2. Reloading the scrollback buffer in order to scroll the history as usual

The first step will let you to use WebSSH again when kills occur.
The second will try to make the kill "transparent". This second step will be available in a few days.

[mbierman]

Fantastic! Thank you and I will update here with any feedback.

[isontheline]

You're Welcome @mbierman

Last update 20.6.1011 is available on TestFlight.

TestFlight is however encountering some problems these last hours :
https://developer.apple.com/forums/search/?q=testflight&page=1&sortBy=lastUpdated

[isontheline]

@mbierman TestFlight should work now

[isontheline]

@mbierman Invitation have been sent

[mbierman]

Thank you!

[isontheline]

Build 1013 now tries to restore the terminal state (as much as it can).

[isontheline]

This issue is being pushed to the App Store. Should be available in the next few hours.