'this.addListenerOnce is not a function' error on refresh

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When I load my WiseJ site and then hit the refresh button, with a querystring specified, I get this error: ‘this.addListenerOnce is not a function’ refresh

It doesn’t trigger a breakpoint in my code, just an exception in WiseJ.Framework. The browser console doesn’t show what caused the error either — no stack trace into any code that I wrote, or references to components.

There are no obvious references in my solution to “addListenerOnce” — when I comment them out it still crashes.

How can I better narrow down what is causing this? Thanks

WiseJ 2.5.24

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addListenerOnce_Is_not_a_function.png addListenerOnce_Is_not_a_function2.png
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Hi Andrew,

Do you perhaps use any third party widgets ?

Is this happening on a certain form/page or is it always happening on every screen?

Best,
Alaa

  • Andrew Niese
    No 3rd party widgets, it happens on the main page and besides the error message box, the app seemingly functions as normal.
  • Alaa (ITG)
    Seems like you’re calling custom javascript from .NET, can you search for that call?
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