Update ReactDOM for react v16 compatibility

ebenpack · Erin Doyle · commit b8f4e580dff2 · 2017-10-12T08:44:04.000-04:00
It appears as is ReactDOM has been removed as of react v16. As a result, react-a11y throws the error "react-a11y: missing argument 'ReactDOM'". Updating the option check to look for `findDOMNode` instead.
diff --git a/src/options.js b/src/options.js
@@ -134,7 +134,7 @@ export default function (...args) {
     }
 
     // make sure ReactDOM is passed in in browser code
-    if (browser && !(ReactDOM && ReactDOM.version)) {
+    if (browser && !(ReactDOM && ReactDOM.findDOMNode)) {
         throw new Error('react-a11y: missing argument `ReactDOM`');
     }
 

Original file line number	Diff line number	Diff line change
`@@ -134,7 +134,7 @@ export default function (...args) {`
`134`	`134`	`}`
`135`	`135`
`136`	`136`	`// make sure ReactDOM is passed in in browser code`
`137`		`- if (browser && !(ReactDOM && ReactDOM.version)) {`
	`137`	`+ if (browser && !(ReactDOM && ReactDOM.findDOMNode)) {`
`138`	`138`	throw new Error('react-a11y: missing argument `ReactDOM`');
`139`	`139`	`}`
`140`	`140`