JackKirk Well-Known Member Licensed User Longtime User Dec 21, 2025 #1 Not so much a question as an (unverified) observation... This has been really bugging me - see previous thread: https://www.b4x.com/android/forum/t...losedchannelexception-how-to-suppress.167875/ After a lot of digging around with MS Copilot and blind "what if" shots it seems that the problem occurs in my B4J ABMaterial app when I use javascript statements of the form: window.open(url, '_blank'); which according to Copilot means "open this URL in a separate tab and keep current page alive" If I use: window.location.href = url; which according to Copilot means "leave this page and go to this URL" the problem seems to go away So I asked Copilot (setting it to "Deep research"): in my b4j abmaterial app it seems that is I use window.open(url, '_blank'); I sometimes generate ClosedChannelException errors but if I use window.location.href = url; I don't - does this make sense Click to expand... and it eventually responded with a very lengthy positive response: https://copilot.microsoft.com/shares/p8vxsHroGnbkJuRs9KRyY which is bordering on out of my competence but maybe Alain or Erel could have a look and see if it is reasonable. Any and all inputs requested... Last edited: Dec 21, 2025
Not so much a question as an (unverified) observation... This has been really bugging me - see previous thread: https://www.b4x.com/android/forum/t...losedchannelexception-how-to-suppress.167875/ After a lot of digging around with MS Copilot and blind "what if" shots it seems that the problem occurs in my B4J ABMaterial app when I use javascript statements of the form: window.open(url, '_blank'); which according to Copilot means "open this URL in a separate tab and keep current page alive" If I use: window.location.href = url; which according to Copilot means "leave this page and go to this URL" the problem seems to go away So I asked Copilot (setting it to "Deep research"): in my b4j abmaterial app it seems that is I use window.open(url, '_blank'); I sometimes generate ClosedChannelException errors but if I use window.location.href = url; I don't - does this make sense Click to expand... and it eventually responded with a very lengthy positive response: https://copilot.microsoft.com/shares/p8vxsHroGnbkJuRs9KRyY which is bordering on out of my competence but maybe Alain or Erel could have a look and see if it is reasonable. Any and all inputs requested...
