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  1. #1
    Member
    Join Date
    Nov 2008
    Location
    Boston
    Posts
    24

    Error popup in browser

    Hi,

    When I was running my web app, occasionally I got an LS error popup showing:

    Error 120
    Warning: there is probably another web application connected to the same Lightstreamer Server within this browser instance. That could prevent the current application from connecting to the Server. Please close the other application to unblock the current one.
    But I didn't have another application running in another tab of the same browser. Can anyone please advise how this error could possibly happen?

    Since my web app was running fine even after showing this error popup, I'd like to suppress the error popup. I've set the following in my javascript:

    Code:
        
        pushpage.context.setDebugAlertsOnClientError(false);
        pushpage.context.setRemoteAlertsOnClientError(true);
        eng.context.setDebugAlertsOnClientError(false);
        eng.context.setRemoteAlertsOnClientError(true);
    But I still get this error popup. Can anyone please advise how to suppress it?

    Thanks,
    Richard

  2. #2
    Power Member
    Join Date
    Jul 2006
    Location
    Cesano Maderno, Italy
    Posts
    784
    you can suppress such alerts through the following methods:
    PushPage.onClientAlert
    Lightstreamer.Engine.onClientAlert

  3. #3
    Member
    Join Date
    Nov 2008
    Location
    Boston
    Posts
    24
    Thanks Mone.

  4. #4
    Member
    Join Date
    Jan 2008
    Location
    HK
    Posts
    16
    Hi,

    I have the same issue which web client occasionally prompt such warning message. Why the system prompts this warning message? I only opened 1 tab running Lightstreamer web client on firefox.

    Thanks!

    Stephen

  5. #5
    Power Member
    Join Date
    Jul 2006
    Location
    Cesano Maderno, Italy
    Posts
    784
    hi,

    there were some false positive on older clients, do you still see the alert with our latest release (web client 4.4)?

  6. #6
    Member
    Join Date
    Jan 2008
    Location
    HK
    Posts
    16
    I'm now using 4.3.1. I think I need to upgrade it.

    In case of false positive. Do you recommend I suppress it by following methods?
    PushPage.onClientAlert
    Lightstreamer.Engine.onClientAlert

    Thanks!

    Best Regards,
    Stephen Lam

  7. #7
    Member
    Join Date
    May 2016
    Location
    Madrid, Espaņa
    Posts
    1
    I have exactly the same problem with current versions and although it has been several years my web continues to generate the error code . mainly Opera, is there some solution?

  8. #8
    Administrator
    Join Date
    Feb 2012
    Location
    Milano
    Posts
    541
    Hi porque,

    Please could you confirm the exact version and build number in use?

  9. #9
    Quote Originally Posted by giuseppe.corti View Post
    Hi porque,

    Please could you confirm the exact version and build number in use?
    Hi Giuseppe, same here with the latest version.
    Last edited by Dantzler; July 27th, 2019 at 04:14 PM.

  10. #10
    Administrator
    Join Date
    Feb 2012
    Location
    Milano
    Posts
    541
    Hi Dantzler,

    The error discussed here refers to very old versions of the client library. With newer versions (> = 6) it should never appear.

    Please specify the version and build number of the client library and the version of the server accurately.
    You could also enable the debug log of the client library and share with us a significative snippet.

    Regards,
    Giuseppe

 

 

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