noVNC encountered an error: Cannot read properties of null (reading 'addEventListener')

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Vali Leonard

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Jun 21, 2023, 4:15:13 PM6/21/23

to noVNC

Hi everyone,

When accessing noVNC, I get this error:

noVNC encountered an error:

Cannot read properties of null (reading 'addEventListener')

TypeError: Cannot read properties of null (reading 'addEventListener') at Object.addTouchSpecificHandlers (http://<public_ip>:6080/app/ui.js:223:13) at Object.start (http:// <public_ip> :6080/app/ui.js:78:12) at http:// <public_ip> :6080/app/ui.js:45:27

Please tell me how to investigate this issue.

Thank you.

Pierre Ossman

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Jun 22, 2023, 1:18:20 AM6/22/23

to no...@googlegroups.com, Vali Leonard

It means it fails to find some critical elements in the HTML page. Have
you done any modifications to noVNC?

That also seems to be a very old version of noVNC. I would recommend
testing the current version first.

Regards
--
Pierre Ossman Software Development
Cendio AB http://cendio.com
Teknikringen 8 http://twitter.com/ThinLinc
583 30 Linköping http://facebook.com/ThinLinc
Phone: +46-13-214600

A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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