React: Element.createShadowRoot is deprecated and will be removed in M73, around March 2019. Please use Element.attachShadow instead

Created on 26 Feb 2019  路  3Comments  路  Source: facebook/react

include.preload.js:1 [Deprecation] Element.createShadowRoot is deprecated and will be removed in M73, around March 2019. Please use Element.attachShadow instead. See https://www.chromestatus.com/features/4507242028072960 for more details.

What is the expected behavior?

Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?

picture huisheng123666

Most helpful comment

@huisheng123666 It's probably from an extension you're using. Google Dictionary causes this to pop up in the console for me on all sites.

picture tpyoung on 12 Mar 2019
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All 3 comments

React doesn't use createShadowRoot anywhere, so this warning must be from something else.

aweary picture aweary on 26 Feb 2019

@huisheng123666 It's probably from an extension you're using. Google Dictionary causes this to pop up in the console for me on all sites.

tpyoung picture tpyoung on 12 Mar 2019
❤14 👍10

@huisheng123666 It's probably from an extension you're using. Google Dictionary causes this to pop up in the console for me on all sites.

Very helpful that was because of dictionary and removed that extension after that it is working fine.
Thanks

sunil220 picture sunil220 on 10 Nov 2019
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