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Fix error overlay 'Object.assign' issue in IE #3043

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tharakawj
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Fixes #3034

Babel React JSX transform plugin is also use Object.assign for spread attributes. So React.createElement has been used here to avoid Object.assign

@@ -174,7 +174,9 @@ class StackFrame extends Component {
onClick={canOpenInEditor ? this.openInEditor : null}
style={canOpenInEditor ? codeAnchorStyle : null}
>
<CodeBlock {...codeBlockProps} />
{// Use JS instead of JSX spread attributes to avoid Object.assign
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That's unfortunate. Are you sure this is really an issue? I had an impression that JSX puts extends helper in either case.

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Yes. We have enabled useBuiltIns flag for babel-plugin-transform-react-jsx as well.
https://github.com/facebookincubator/create-react-app/blob/master/packages/babel-preset-react-app/index.js#L27

@gaearon
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gaearon commented Sep 1, 2017

I think this is too fragile. We'll mess it up again.

Let's just import polyfills first.

@tharakawj
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I feel the same. I'll close this and create another with polyfills first.

@tharakawj tharakawj closed this Sep 1, 2017
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create-react-app not working with IE11 in development mode
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