IE11 preProcessedHeaders.split(/\r?\n/)

[mikekotikov]

Thanks a lot for the ponyfill =)

Experience one issue on IE11 that crushes my app.

Have noticed that it fails with 'core-js' version above 3.5.0.
As for code investigation error appeared to raise at this expression to me preProcessedHeaders.split(/\r?\n/) .

Found same problem description in 'fetch' repo and PR with solution to it that worked fine in my case too.

Could you please apply this fix?

[qubyte]

Thanks for this. I've bumped fetch and published as 7.1.0.