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Angular Testing Library with combination of HappyDom instead of JSDOM #440

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@jarekcimoch

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@jarekcimoch

Hello, I'm using HappyDom instead of JSDOM and I have following issue.

when I do something like
await screen.findByText(optionLabel);

observer.observe is not a function TypeError: observer.observe is not a function

at C:\Ohpen\cloned-2\mfes-broker-app-angular\src\node_modules\@testing-library\dom\dist\wait-for.js:96:16

HappyDom is supporting MutationObserver and I guess JSDOM was not out of the box hance some logic there is used.
Could it be fixed? Or can I fix it somehow myself?

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