Microsoft Edge 16-18 missing "flat" polyfill
See original GitHub issueBug report
Describe the bug
When loading out Next site with Edge 18, there is a critical TypeError
stating Object doesn't support property or method 'flat'
To Reproduce
- Go to https://epdev123.org/wiki/lang_en/magnus-dunn in Edge 18
- Notice the full-screen critical error
- View our public sentry issue here: https://sentry.io/share/issue/cc2dd3b7d40b44a4ae69806e81a63c46/
Expected behavior
This page should load properly like all other browsers were able to
Screenshots
System information
- OS: Windows
- Browser: Edge 18, Edge 17, Edge 16 (see Sentry Issue for browser breakdown)
- Version of Next.js: 9.3.1
Additional context
This issue may relate to the recent changes in Next’s polyfilling partially described in https://github.com/zeit/next.js/issues/7993
-
I looked into adding this flat polyfill manually, but it’s already included in
next-polyfill-nomodule
asimport 'core-js/features/array/flat'
-
We have zero polyfilling in our application currently, we’re fully relying on Next’s included polyfills. We have not changed the included version of
core-js
-
This is a private project, we can email a zip to anyone at Zeit, just let me know if this looks like a valid bug to you all
Issue Analytics
- State:
- Created 4 years ago
- Reactions:1
- Comments:12 (10 by maintainers)
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I’ve seen the same for our site. The problem is that Edge 16-18 doesn’t support flat(Map), but has support for
nomodule
, meaning that the polyfills won’t be downloaded.This is fixed in the latest Next.js canary version.