[3.8.3] Can't get device config and can't play for web in editor

Tks for your report. We have fixed it, the version above CocosCreator 3.8.4 will be OK.

Is there any way I can temporarily ignore this error?

1.create a blank extension. here is the link:Extension Templates and Compile Builds | Cocos Creator
2. use the main.js in the zip file and copy to your project\extensions\extension_name\dist, cover the older one
fix-devices-1.0.2.zip (814 Bytes)

Thank’s for reply