Nullish coalescing operator (??) in dist in 8.18.0

[leroydev]

@testing-library/dom@8.18.0 has a nullish coalescing operator in the distributed build in the file dist/@testing-library/dom.esm.js.
This results in only Node.js 14 and up being able to execute this code and in errors in Cypress 9.1.0:

Check here, 8.17.1, lines 409 to 413: https://unpkg.com/browse/@testing-library/dom@8.17.1/dist/@testing-library/dom.esm.js

And in 8.18.0, lines 428 to 430: https://unpkg.com/browse/@testing-library/dom@8.18.0/dist/@testing-library/dom.esm.js

[rmoralp]

It seems to be related to last kcd-scripts updates.

Could @kentcdodds check it?

[sneridagh]

@kentcdodds This is quite important, probably breaking the build of a lot of people...

[MichaelDeBoey]

@rmoralp @sneridagh It can't be because the latest changes in kcd-scripts as @testing-library/dom is still using v11 & kcd-scripts is already at v12.3

dom-testing-library/package.json

Line 59 in ab8182c

"kcd-scripts": "^11.0.0",

[sneridagh]

It's because of Cypress... no kcd-scripts involved...

[MichaelDeBoey]

Since I can't assign this ticket to a team, I'll ping @testing-library/dom to look into this