IE11 problem in v6.7.0

Thank you for answering #2468 the other day. I have found a problem in IE11 again, so I will report it.

Describe the bug When I was using React Hook Form v6.7.0 with IE11, I got some errors as shown in the screenshot. Also I installed @babel/runtime-corejs3 with reference to FAQs. I think it was caused by changing the rollup settings in v6.5.1 -> v.6.5.2, but I’m not sure.

To Reproduce

1. Build the following code(Production or Debug Build) and run it with IE11.
2. Enter some characters in the form and click “Submit”(If you can’t reproduce it, please reload a few times).
3. Get some error messages and the form does not work fine.

Specifically, after pressing The “Submit” button, the next process is not executed. I have found this problem both Production Build and Debug Build.

Codesandbox link (Required) I share my repository because it’s difficult for Codesandbox to reproduce with IE11.

https://github.com/kwht-k/rhf670-ie11-reproduction

Expected behavior The error message disappear and my code works fine in IE11.

Screenshots

Desktop (please complete the following information):

OS: Windows10 Pro 64bit Browser: Internet Explorer 11 (11.1016.18362.0) Version of React Hook Form: 6.7.0 Version of @babel/runtime-corejs3: 7.11.2

[bluebill1049]

Thanks @bluebill1049 .

But I’m not sure only Object.values and Object.entries are necessary. There may be others.

we can probably can include more as we go…

[yhor1e]

Thanks @bluebill1049 .

But I’m not sure only Object.values and Object.entries are necessary. There may be others.