[v2][IE11] Gatsby develop doesn't work properly in IE11.

[rtm619]

Description

Gatsby develop doesn't work properly in IE 11. I tried to include polyfills, but its throwing errors like "Promise is undefined", "Objects are not supported as react children", etc. I have added the .babelrc configuration from gatsby docs.

Steps to reproduce

https://github.com/rtm619/gatsby-IE-demo

Please clone the above repo and check in IE11.

Expected result

Gatsby develop should work in IE11.

Actual result

Gatsby develop throws an error.

[kakadiadarpan]

@rtm619 can you try adding IE 11 to browsers in targets?

https://github.com/rtm619/gatsby-IE-demo/blob/master/.babelrc#L10

[rtm619]

@kakadiadarpan Tried it, doesn't work.

[sarahannnicholson]

@rtm619 is it similar to this issue? #7003

I believe its being worked on by the Gatsby team

[rtm619]

@sarahannnicholson Yeah, same issue. I added Babel Polyfill in gatsby-browser and changed preset-env's builtIns to "entry" and then, IE 11 works in develop. But in my actual project, I get the same "promise is undefined" or Expected ":" or other errors in IE11 after gatsby build. I'll close this one.

[rtm619]

@KyleAMathews Based on the comments of original issue #7003 , --no-uglify resolves the IE11 build issue. Can you take a look at it once?

[lfurzewaddock]

This resolved my production issues (not development) for IE11: #7003 (comment)

[abumalick]

@rtm619 I think this issue was fixed for you with #7003 (comment) right ?

[rtm619]

@abumalick Yes. i'll close it now

[glueCod]

@rtm619 hey man i am now facing with that issue. Could tell how did you solve your issue?. The Gatsby project in IE11 rendered as a blank page. May you help to come up with it. Thanks.