AccordionTab title with custom HTML gives error

[vickyvxr]

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[ ] bug report
[x ] feature request
[ ] support request => Please do not submit support request here, instead see https://forum.primefaces.org/viewforum.php?f=57

Current behavior
The accordion Tab only allows as header a String with the title

Expected behavior
We need to include custom HTML in the Accordion header. In the example you can see a title and a button:

Minimal reproduction of the problem with instructions
The accordion is able to render this custom HTML but an error is thrown in the console:

• PrimeReact version:
  "primereact": "^2.0.0-beta.9",

• Browser:
  Chrome