new forms require refresh

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We recently tried to deploy our app to a Windows 2012 server and ran into an odd issue…

If the app closes a form and opens a new one, then the form closes, but the new form is not displayed unless you refresh the browser.  In fact, in some cases, if a complex stack of new panels are displayed, then the same error occurs.  Has anyone else seen this?

It doesn’t happen if I run the app through Visual Studio, and it doesn’t happen if I run the app on Windows 10 and access it from a browser on the same machine.  However, if I let someone else access the Windows 10 machine from across the internet, then they see the same error.

Strangely, I see the error if I access the app from a browser on the Windows 2012 machine.  So, it’s not just a local vs. remote issue.

I’m using version 1.3.65.

Any ideas?


David Muse –

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Best Answer

For anyone else having this problem…

It turns out I forgot to install WebSockets on the 2012 server.  After installing them, everything works as expected.

Thanks for finding that Luca!

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I don’t see any javascript errors, only a few warnings, mostly about unreachable code in qx.js.  What should I look for after enabling “debug”: true?

With Firefox, I see a lot of unsupported client errors:

020141 Unsupported client: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0! Assumed gecko version (Firefox 3.0)

That was enlightening though.  I usually test with Firefox, but I tried Chrome, and Edge, and the app works as expected.  Actually, with Edge there are a few problems, but they aren’t as significant as this problem.

Please let me know what else I can do to help resolve this.  I can probably coordinate access for you to the app and even the server, if you’d like to play with it directly.

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Please check in dev tools if there is a javascript error. Also turn on “debug”:true in the json config.

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