Synchronization Loss

[jeeftor]

Hello, I'm wondering if/why how to debug my vscode sessions loosing sync:

I noticed this message:

vscode <- drawio: { error: "unknownMessage", data: "{"action":"updateLiveshareViewState","selected"+... }

in the log - and I've got to a situation where my two views have become unsynced...

Any idea how to debug this better?

Thanks

Is there a way to run the extension in debug mode with a debug console or something and step through? Obviously there is code for this updateLieveshareViewState - but I'm not sure what's going on.

[jeeftor]

So it looks like client sends out the following info:

But when I look at the log on my server it really seems like other data is coming across... (unless its being truncated somehow)

I'm going to assume if this gets fixed the cursor will start working again too...

[jeeftor]

So @hediet - if I check out your source what do I run to "debug" this plugin?

[jeeftor]

I'm pulling down an empty insider vscode + insider plugin to verify the issues still exist...

[jeeftor]

Trying this out with the insider build:

I've got insiders with Live Share + Insider plugin and I've got a web view opened with just insider plugin:

I can't duplicate the sync loss - however - I am able to duplicate the error message:

vscode -> drawio: { action: "updateLiveshareViewState", selectedCells: [ ], cursors: [ ], selectedRectangles: [ ] } vscode <- drawio: { error: "unknownMessage", data: "{"action":"updateLiveshareViewState","selected"+... }

(Here is how I ran)

[jeeftor]

So I've played around with the debugging a little but I'm running into a local storage issue:

When I run

I seem to run into a local storage config issues

        const localStorage = untracked(() => config.localStorage);

Is there something I'm doing wrong here - or do I need to pass in some config options?

Thanks

[jeeftor]

Oh the other thing is when trying to develop the plugin it just hangs at the

loading screen - so I wasn't sure if the storage was an issue here.

[jeeftor]

Unless its tied to this error:

023-03-27 14:05:01.579 [warning] hediet.vscode-drawio created a webview without a content security policy: https://aka.ms/vscode-webview-missing-csp
2023-03-27 14:06:07.441 [info] ExtensionService#_doActivateExtension vscode.simple-browser, startup: false, activationEvent: 'onOpenExternalUri:https'

[hediet]

Thanks for investigating!

This is for sure a liveshare problem, as this extension does not synchronize the state on its own.

You can verify this to be a liveshare issue by reopening the diagram with the text editor and see that the text does not agree.

I also run into this even without draw.io.

[jeeftor]

I definitely went down the rabbit hole yesterday of jumping through the javascript (TS) land of doom...

When you are developing any chance you can post your debugging flow?

it seems like running (dev) kinda worked but I couldn't really get the plugin to synchronize correctly due to running into local storage issues... I'd be happy to help out with debugging/patching...

[hediet]

I'll see what I can do! There is nothing this extension can do though to improve synchronization... It all goes through the VS Code text model and then the liveshare extension ensures that all text models of the same uri on different machines eventually converge.

[jeeftor]

I wonder if they made any API changes whatsoever.

In any case -> When testing the cursor tracking I did notice differences between Web -> Electron vs Electron -> Electron...

Not sure why but I think possibly maybe they've embedded a node-js inside the native app?