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react-dom/server: renderToString fails with array type children #10212

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@tushar-singh

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@tushar-singh

React 16 alpha allows returning array in render function but server renderer expects children to always be react elements

TypeError: Cannot read property 'toLowerCase' of undefined
    at ReactDOMServerRenderer.renderDOM

source

function renderDOM(element, context) {
    var tag = element.type.toLowerCase(); // element is array

Fiddle: https://jsfiddle.net/84v837e9/160/

react@16.0.0-alpha.13

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