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Duplicate diagram tab gives "Illegal Constructor" message

I have a diagram with 2 tabs names "Option A" and "Option B". When trying to duplicate wither of the tabs I get a popup stating "Illegal Constructor".

The message in the popup is different depending on which browser I use.

Chrome: "Illegal Constructor"

Safari: "function is not a constructor (evaluating 'new a.constructor')"

1 answer

This is using the latest plugin for Confluence Cloud? What browser/version and OS are you using?

I have the very same issue. I'm using a plain setup but with the C4 extension ( I cannot duplicate, copy elements nor tabs in my diagram.

The issue occurs in the browsers that @JD Stuart explains as well as in the desktop application. I'm using OS X.

That C4 extension is not written properly, you should not use it.

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