onPageChange handler raised an error

Hi all - I installed the custom-category-boxes theme component, and on some (but not all) of my pages, I receive a warning banner at the top and see the following in my browser console. It appears that this is because the c variable ends up being null–why that is, I did not investigate further.

client-error-handler.js:125 [THEME 2 'Custom Category Boxes'] 
TypeError: Cannot read properties of undefined (reading 'name')
    at category-banner.js:31:24
    at plugin-api.js:127:26
    at AppEvents.<anonymous> (plugin-api.js:736:50)
    at m (index.js:200:1)
    at AppEvents.trigger (evented.js:27:1)
    at page-tracker.js:41:17
    at invoke (backburner.js.js:282:1)
    at h.flush (backburner.js.js:197:1)
    at p.flush (backburner.js.js:358:1)
    at B._end (backburner.js.js:798:1)
    at B.end (backburner.js.js:589:1)
    at B._runExpiredTimers (backburner.js.js:905:1)
reportToConsole	@	client-error-handler.js:125

At first I thought this may be due to the category names having spaces in them, but even renaming one category to have no spaces continues to throw this error.

Happy to provide more information if wanted/needed. The forum in question is https://forums.rockylinux.org


Can you share pages where it happens?

I also noticed an Uncaught TypeError: Cannot read properties of undefined (reading 'name'). But it isn’t related to custom category boxes; it even happens in safe mode.

When I open https://meta.discourse.org/u/chapoi/invited/redeemed?safe_mode=no_themes%2Cno_plugins in a new window or tab, I get this:

It does not happen when I remove ‘redeemed’ from the URL, and I was not able to reproduce it using a staff user.

I got it at https://forums.rockylinux.org/c/techhelp/6

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Thanks for report, that should fix it:


Fantastic! thank you so much. I’ll get it updated on our instance immediately :slight_smile:

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Confirmed – works perfectly. Thank you for the prompt fix :slight_smile:

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