[Collaboration] Get error event when Update Scroll Sync Session

Hi PDFTron,

I use Collaboration to use Scroll Sync Session. I use this document to create, exit, … a scroll session: Introduction | WebViewer Real-time Collaboration

From the server side, I set ‘proxy_read_timeout’ is X(s), X can be 100, 36000, or any value. After X seconds, connections will be disconnected.
When joining a session, after X seconds, the scroll session will be disconnected, then scrolling the mouse, API UpdateScrollSyncSession responses success 200 status and the error message that the scroll session does not exist. I sent the image illustrating the error.
My problem is that I cannot get the event to get the above error message in the code. I researched the document but there is no idea to support my issue.
Can you give me the solution to get the error message when occurring the error from the client side?

Product Version:

  • webviewer: 8.10.0
  • collab-client: 2.0.0

Thank you.


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