How do I correctly configure ExtReact to run custom elements in Edge and IE?

Question

I'm a little worried this is a dumb issue that I'm running into but here goes:

I just created an ExtReact app following the tutorial here. Without changing any code I'm seeing the following error in Edge:

The app loads fine in Firefox and Chrome but not Edge or IE. Obviously it has to do with custom elements but I don't know what else I'm missing or if I've misconfigured something.

score 1 · Accepted Answer · answered May 12 '20 at 18:38

1

You need a webcomponents polyfill

answered May 12 '20 at 18:38

Józef Podlecki

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Thanks! Also discovered I'm running an old version of Edge. – Jonathan Cameron May 12 '20 at 20:01

How do I correctly configure ExtReact to run custom elements in Edge and IE?

1 Answers1