PCF react component fails in Power Apps Studio with "Promise.allSettled is not a function" error

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Posted on by Community Power Pla... Microsoft Employee

I have constructed a PCF react component by wrapping tinyMCE library to get a rich text component for canvas apps. It works perfect while testing in Visual Studio Code , but fails to render editor UI being loaded into Power Apps Studio. It writes:

tinymce.min.js:9 Uncaught TypeError: Promise.allSettled is not a function
 at r (tinymce.min.js:9:63402)
 at s (tinymce.min.js:9:63751)
 at ya.loadScripts (tinymce.min.js:9:63951)
 at ya.loadQueue (tinymce.min.js:9:63108)
 at MR (tinymce.min.js:9:360088)
 at tinymce.min.js:9:395090
 at jA.render (tinymce.min.js:9:395106)
 at tinymce.min.js:9:403331
 at Array.<anonymous> (tinymce.min.js:9:403341)
 at Ne (tinymce.min.js:9:5303)

It looks like a react-native error: https://stackoverflow.com/questions/66575667/promise-allsettled-is-not-a-function. How to get rid of this?

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Building Power Apps

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